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Superconductivity in narrow-band systems with local nonretarded attractive interactions
Rev. Mod. Phys. 62, 113 – Published 1 January, 1990
DOI: https://doi.org/10.1103/RevModPhys.62.113
Abstract
In narrow-band systems electrons can interact with each other via a short-range nonretarded attractive potential. The origin of such an effective local attraction can be polaronic or it can be due to a coupling between electrons and excitons or plasmons. It can also result from purely chemical (electronic) mechanisms, especially in compounds with elements favoring disproportionation of valent states. These mechanisms are discussed and an exhaustive list of materials in which such local electron pairing occurs is given. The authors review the thermodynamic and electromagnetic properties of such systems in several limiting scenarios: (i) Systems with on-site pairing which can be described by the extended negative- Hubbard model. The strong-attraction limit of this model, at which it reduces to a system of tightly bound electron pairs (bipolarons) on a lattice, is extensively discussed. These electron pairs behaving as hard-core charged bosons can exhibit a superconducting state analogous to that of superfluid II. The change-over from weak-attraction BCS-like superconductivity to the superfluidity of charged hard-core bosons is examined. (ii) Systems with intersite pairing described by an extended Hubbard model with and nearest-neighbor attraction and/or nearest-neighbor spin exchange as well as correlated hopping. (iii) A mixture of local pairs and itinerant electrons interacting via a charge-exchange mechanism giving rise to a mutually induced superconductivity in both subsystems. The authors discuss to what extent the picture of local pairing, and in particular superfluidity of hard-core charged bosons on a lattice, can be an explanation for the superconducting and normal-state properties of the high- oxides: doped BaBi and the cuprates.
References (405)
- Aleksandrov, A. Yu., S. P. Ionov, A. M. Pritchard, and V. I. Gol'danskii, 1971, Zh. Eksp. Teor. Fiz. Pis'ma Red. 13, 13 [JETP Lett. 13, 8 (1971)]
- Alexandrov, A. S., 1988, Phys. Rev. B 38, 925
- Alexandrov, A. S., and V. F. Elesin, 1982, Fiz. Tverd. Tela (Leningrad) 25, 456 [Sov. Phys. Solid State 25, 257 (1983)]
- Alexandrov, A. S., and V. F. Elesin, 1985, Izv. Akad. Nauk SSSR 49, 326
- Alexandrov, A. S., V. N. Grebenev, and E. A. Mazur, 1987, Pis'ma Zh. Eksp. Teor. Fiz. 45, 357 [JETP Lett. 45, 455 (1987)]
- Alexandrov, A. S., and A. B. Khmelinin, 1986, Fiz. Tverd. Tela (Leningrad) 28, 3403 [Sov. Phys. Solid State 28, 1915 (1986)]
- Alexandrov, A. S., and J. Ranninger, 1981a, Phys. Rev. B 23, 1796
- Alexandrov, A. S., and J. Ranninger, 1981b, Phys. Rev. B 24, 1164
- Alexandrov, A. S., and J. Ranninger, 1989, Physica C 159, 367
- Alexandrov, A. S., J. Ranninger, and S. Robaszkiewicz, 1986a, Phys. Rev. Lett. 56, 949
- Alexandrov, A. S., J. Ranninger, and S. Robaszkiewicz, 1986b, Phys. Rev. B 33, 4526
- Alexandrov, A. S., D. A. Samarchenko, and S. V. Traven, 1987, Zh. Eksp. Teor. Fiz. 93, 1007 [Sov. Phys. JETP 66, 567 (1987)]
- Anderson, P. W., 1975, Phys. Rev. Lett. 34, 953
- Anderson, P. W., 1979, in Ill-Condensed Matter, Les Houches Session XXXI, edited by R. Balian, R. Maynard, and G. Toulouse (North-Holland, Amsterdam), p. 161
- Anderson, P. W., 1987, Science 235, 1196
- Anderson, P. W., 1988, in Frontiers and Borderlines in Many-Particle Physics, Proceedings of the International School of Physics "Enrico Fermi," Course CIV, edited by R. A. Broglia and J. R. Schrieffer (North-Holland, Amsterdam)
- Anderson, P. W., and C. Yu, 1985, in Highlights of Condensed-Matter Theory, Proceedings of the International School of Physics "Enrico Fermi," Course No. LXXXIX, edited by F. Bassini and M. P. Tosi (North-Holland, Amsterdam), p. 767
- Arovas, D. P., and A. Auerbach, 1988, Phys. Rev. B 38, 316
- Atkinson, L., and P. Day, 1969, J. Chem. Soc. A 16, 2432
- Auerbach, A., and D. P. Arovas, 1988, Phys. Rev. Lett. 61, 617
- Baeriswyl, D., P. Horsch, and K. Maki, 1988, Phys. Rev. Lett. 60, 70
- Bahder, T., and F. Woynarovich, 1986, Phys. Rev. B 33, 2114
- Balseiro, C. A., A. G. Rojo, E. R. Gagliano, and B. Alascio, 1988, Phys. Rev. B 38, 9315
- Balzarotti, A., A. P. Menushenkov, N. Motta, and J. Purans, 1984, Solid State Commun. 49, 887
- Bari, R. A., 1973, Phys. Rev. Lett. 30, 790
- Baskaran, G., Z. Zou, and P. W. Anderson, 1987, Solid State Commun. 63, 973
- Bastide, C., and C. Lacroix, 1988a, J. Phys. F 18, 63
- Bastide, C., and C. Lacroix, 1988b, J. Phys. C 21, 3557
- Batlogg, B., 1984, Physica B+C 126, 275
- Batlogg, B., R. J. Cava, L. W. Rupp, Jr., A. M. Mujsce, J. J. Krajewski, J. P. Remeika, W. F. Peck, Jr., A. S. Cooper, and G. P. Espinosa, 1988, Phys. Rev. Lett. 61, 1670
- Batlogg, B., R. J. Cava, and M. Stavola, 1988, Phys. Rev. Lett. 60, 754
- Batlogg, B., G. Kourkoulis, W. Weber, R. J. Cava, A. Jayaraman, A. E. White, L. W. Rupp, and E. A. Rietman, 1987, Phys. Rev. Lett. 59, 912
- Batlogg, B., A. P. Ramirez, R. J. Cava, R. B. van Dover, and E. A. Rietman, 1987, Phys. Rev. B 35, 5340
- Bednorz, J. G., and K. A. Müller, 1986 Z. Phys. B 64, 189
- Bednorz, J. G., and K. A. Müller, 1988, Rev. Mod. Phys. 60, 585
- Beille, J., et al., 1987, Physica B 146, 307
- Beloborod'ko, S. I., and I. O. Kulik, 1986, Fiz. Nizk. Temp. 12, 465 [Sov. J. Low Temp. Phys. 12, 262 (1986)]
- Beni, G., P. Pincus, and J. Kanamori, 1974, Phys. Rev. B 10, 1896
- Bianconi, A., A. C. Castellano, M. de Santis, P. Delgou, A. Gargano, and R. Giorgi, Physica B 146, 307
- Bickers, N. E., D. J. Scalapino, and S. R. White, 1989, Phys. Rev. Lett. 62, 961
- Birgenau, R. J., Y. Endoh, K. Kakurai, Y. Hidaka, T. Murakami, M. A. Kastner, T. R. Thurston, G. Shirane, and K. Yamada, 1989, Phys. Rev. B 39, 2868
- Birgeneau, R. J., and G. Shirane, 1989, in Physical Properties of High Temperature Superconductors I, edited by D. M. Ginsberg (World Scientific, Singapore), p. 152
- Bishop, A. R., P. S. Lomdahl, J. R. Schrieffer, and S. A. Trugman, 1988, Phys. Rev. Lett. 61, 2709
- Bishop, D. J., P. L. Gammel, A. P. Ramirez, R. J. Cava, B. Batlogg, and E. A. Rietman, 1987, Phys. Rev. B 35, 8788
- Bishop, D. J., A. P. Ramirez, P. L. Gammel, B. Batlogg, E. A. Rietman, R. J. Cava, and A. J. Mills, 1987, Phys. Rev. B 36, 2408
- Bishop, R. F., 1974, J. Low Temp. Phys. 15, 601
- Bhattacharya, S., M. J. Higgins, D. C. Johnson, A. J. Jacobson, J. P. Stokes, J. T. Lewandowski, and D. P. Goshorn, 1988, Phys. Rev. B 37, 5901
- Blatt, J. M., 1964, Theory of Superconductivity (Academic, New York)
- Bonča, J., P. Prelovšek, and I. Sega, 1989, Phys. Rev. B 39, 7074
- Bourne, L. C., A. Zettl, T. W. Barbee III, and M. L. Cohen1987, , Phys. Rev. B 36, 3990
- Bray, A. J., and M. A. Moore, 1982, J. Phys. C 15, L765
- Brazovskii, S., N. Kirova, and V. Yakovenko, 1985, Solid State Commun. 55, 187
- Brewer, J. H., et al. 1987, Phys. Rev. Lett. 60, 1073
- Bruce, A. D., and A. Aharony, 1975, Phys. Rev. B 11, 478
- Bulaevskii, L. N., A. A. Sobyanin, and D. I. Khomskii, 1984, Zh. Eksp. Teor. Fiz. 87, 1490 [Sov. Phys. JETP 60, 856 (1984)]
- Bussmann-Holder, A., A. Simon, and H. Büttner, 1989, Phys. Rev. B 39, 207
- Butera, R. A., 1988, Phys. Rev. B 37, 5909
- Callaway, J., D. G. Kanhere, and P. K. Misra, 1987, Phys. Rev. B 36, 7141
- Campbell, D. K., J. Tinka Gammel, and E. Y. Loh, Jr., 1988, Phys. Rev. B 38, 12043
- Capponi, J. J., C. Chaillout, A. W. Hewat, P. Lejay, P. Marezio, N. Nguyen, B. Raveau, J. L. Souberoux, J. L. Tholence, and R. Tournier, 1987, Europhys. Lett. 3, 1301
- Cava, R. J., B. Batlogg, R. B. van Dover, D. W. Murphy, S. Sunshine, T. Siegrist, J. P. Remeika, E. A. Rietman, S. Zahurak, and G. P. Espinosa, 1987, Phys. Rev. Lett. 58, 1676
- Cava, R. J., B. Batlogg, J. J. Krajewski, R. Farrow, L. W. Rupp, A. E. White, K. Shork, W. F. Peck, and K. Kometani, 1988, Nature 332, 814
- Chaillout, C., A. Santoro, J. P. Remeika, A. S. Cooper, G. P. Espinoza, and M. Marezio, 1988, Solid State Commun. 65, 1363
- Chakravarty, S., B. I. Halperin, and D. R. Nelson, 1988, Phys. Rev. Lett. 60, 1057
- Chakraverty, B. K., 1979, J. Phys. (Paris) Lett. 40, L-99
- Chakraverty, B. K., D. Feinberg, H. Zheng, and M. Avignon, 1987, Solid State Commun. 64, 1147
- Chakraverty, B. K., and J. Ranninger, 1985, Philos. Mag. B 52, 669
- Chakraverty, B. K., D. D. Sarma, and C. N. R. Rao, 1988, Physica C 156, 413
- Chakraverty, B. K., M. J. Sienko, and J. Bonnerot, 1978, Phys. Rev. B 17, 3781
- Chao, K. A., R. Micnas, and S. Robaszkiewicz, 1979, Phys. Rev. B 20, 4741
- Chao, K. A., R. Micnas, S. Robaszkiewicz, A. M. Oleś, and B. Oleś, 1983, Phys. Lett. 95A, 391
- Chao, K. A., J. Spałek, and A. M. Oleś, 1977, J. Phys. C 10, L271
- Chen, J.-H., T. C. Lubensky, and D. R. Nelson, 1978, Phys. Rev. B 17, 4274
- Chernik, I. A., S. N. Likhov, and N. I. Grechko, 1982, Fiz. Tverd. Tela (Leningrad) 24, 2931 [Sov. Phys. Solid State 24, 1661 (1982)]
- Chung, T. C., J. H. Kaufman, A. J. Heeger, and F. Mund, 1984, Phys. Rev. B 30, 702
- Cohen, M. H., E. N. Economou, and C. M. Soukoulis, 1984a, Phys. Rev. B 29, 4496
- Cohen, M. H., E. N. Economou, and C. M. Soukoulis, 1984b, Phys. Rev. B 29, 4500
- Cooper, J. R., C. T. Chu, L. W. Zhou, B. Dunn, and G. Grüner, 1988, Phys. Rev. B 37, 638
- Cox, D. E., and A. W. Sleight, 1979, Acta Crystallogr. Sec. B 35, 1
- Crabtree, G. W., W. K. Kwok, and A. Umezawa, 1988, in Quantum Field Theory as an Interdisciplinary Basis, Proceedings of the CAP-NSERC Summer Institute in Theoretical Physics, Edmonton, Alberta, 1987, Vol. 1, edited by H. Umezawa, F. C. Khanna (World Scientific, Singapore)
- Crooker, B. C., B. Hebral, E. N. Smith, Y. Takano, and J. D. Reppy, 1983, Phys. Rev. Lett. 51, 663
- Da̧browski, B., D. G. Hinks, J. D. Jorgensen, R. K. Kalia, P. Vashita, D. R. Richards, D. T. Marx, and T. W. Mitchell, 1988, Physica C 156, 24
- Dasgupta, C., and B. I. Halperin, 1981, Phys. Rev. Lett. 47, 1556
- Day, P., 1980, in The Physics and Chemistry of Low Dimensional Solids, edited by L. Alcacer (Reidel, Dordrecht), p. 305
- de Groot, R. A., H. Gutfreund, and M. Weger, 1987, Solid State Commun. 63, 451
- de Jongh, L. J., 1988a, Solid State Commun. 65, 961
- de Jongh, L. J., 1988b, Physica C 152, 171
- De Marco, R., E. N. Economou, and C. T. White, 1978, Phys. Rev. B 18, 3968
- De Raedt, H., and A. Lagendijk, 1983, Phys. Rev. B 27, 6097
- De Raedt, H., and A. Lagendijk, 1986, Z. Phys. B 65, 43
- Dinger, T. R., T. K. Worthington, W. J. Gallagher, and R. L. Sandstrom, 1987, Phys. Rev. Lett. 58, 2687
- Doniach, S., 1984, in Percolation, Localization and Superconductivity, NATO Advanced Study Institute Series B, Vol. 109, edited by A. M. Goldman and S. A. Wolf (Plenum, New York), p. 401
- Eagles, D. M., 1969a, Phys. Rev. 178, 668
- Eagles, D. M., 1969b, Phys. Rev. 186, 456
- Eagles, D. M., 1985, Solid State Commun. 60, 521
- Economou, E. N., C. T. White, and R. De Marco, 1978, Phys. Rev. B 18, 3946
- Efetov, K. B., and A. I. Larkin, 1975, Zh. Eksp. Teor. Fiz. 69, 75 [Sov. Phys. JETP 42, 390 (1976)]
- Eliashberg, G. M., 1987, Pisma Zh. Eksp. Teor. Fiz. 46, 94
- Emery, V. J., 1976, Phys. Rev. B 14, 2989
- Emery, V. J., 1977, in Chemistry and Physics of One-Dimensional Metals, edited by H. J. Keller (Plenum, New York), p. 1
- Emery, V. J., 1987, Phys. Rev. Lett. 58, 2794
- Emery, V. J., 1988, talk given at the IBM Workshop on High-Temperature Superconductivity in Oberlech, Austria, unpublished IBM J. Res. Dev. 33, 246 (1989)
- Emery, V. J., and G. Reiter, 1988a, Phys. Rev. B 38, 4547
- Emery, V. J., and G. Reiter, 1988b, Phys. Rev. B 38, 11938
- Emin, D., 1989, Phys. Rev. Lett. 62, 1544
- Emin, D., and M. S. Hillery, 1989, Phys. Rev. B 39, 6575
- Erata, T., and H. Nagasawa, 1983, J. Phys. Soc. Jpn. 52, 3652
- Faltens, T. A., et al., 1987, Phys. Rev. Lett. 59, 915
- Fedro, A. J., H. B. Schüttler, and S. K. Sinha, 1987, Physica B 148, 250
- Feinberg, D., and J. Ranninger, 1984, Phys. Rev. A 30, 3339
- Feinberg, D., and J. Ranninger, 1986, Phys. Rev. A 33, 3436
- Fetter, A. L., 1970, Ann. Phys. (N.Y.) 60, 464
- Fetter, A. L., 1971, Ann. Phys. (N.Y.) 64, 1
- Fisher, D. S., and M. P. A. Fisher, 1988, Phys. Rev. Lett. 61, 1847
- Fisher, M. E., and D. R. Nelson, 1974, Phys. Rev. Lett. 32, 1350
- Foldy, L. L., 1961, Phys. Rev. 124, 649
- Foldy, L. L., 1962, Phys. Rev. 125, 2208
- Foster, C. M., A. J. Heeger, G. Stucky, and N. Herron, 1989, Solid State Commun. 71, 945
- Fradkin, E., and J. E. Hirsch, 1983, Phys. Rev. B 27, 1680
- Freltoft, T., J. E. Fischer, G. Shirane, D. E. Moncton, S. K. Sinha, D. Vaknin, J. P. Remeika, A. S. Cooper, and D. Harshman, 1987, Phys. Rev. B 36, 826
- Fujimori, A., E. Takayama-Muromachi, Y. Uchida, and B. Okai, 1987, Phys. Rev. B 35, 8814
- Fujita, T., et al., 1987, Jpn. J. Appl. Phys. Suppl. 26-3, 1041
- Fukuyama, H., Y. Hasegawa, and Y. Suzumura, 1988, Physica C 153-155, 1630
- Gagliano, A. R., A. G. Rojo, C. A. Balseiro, and B. Alascio, 1987, Solid State Commun. 64, 901
- Gammel, J. T., and D. K. Campbell, 1988, Phys. Rev. Lett. 60, 71
- Ganguli, B. N., U. N. Upadhyaya, and K. P. Sinha, 1966, Phys. Rev. 146, 317
- Geerk, J., X. X. Xi, and G. Linker, 1988, Z. Phys. B 73, 329
- Ginzburg, V. L., 1964, Zh. Eksp. Teor. Fiz. 47, 2318 [Sov. Phys. JETP 20, 1549 (1965)]
- Ginzburg, V. L., 1976, Usp. Fiz. Nauk 118, 315 [Sov. Phys. Usp. 19, 174 (1976)]
- Griessen, R., 1987, Phys. Rev. B 36, 5284
- Groznov, I. N., S. P. Ionova, I. B. Kevedina, V. S. Lubimov, E. F. Makarov, O. V. Marchenko, N. N. Mikhailov, V. A. Onishchuk, and V. P. Shantarovich, 1984, Phys. Status Solidi B 123, 183
- Guinea, F., 1983, J. Phys. C 16, 405
- Gurvitch, M., and A. T. Fiory, 1987, Phys. Rev. Lett. 59, 1337
- Gusmão, M. A., 1987, Phys. Rev. B 35, 1682
- Haldane, F. D. M., 1980, Phys. Rev. Lett. 45, 1358
- Halperin, B. I., T. C. Lubensky, and S.-K. Ma, 1974, Phys. Rev. Lett. 32, 292
- Harris, A. B., and R. V. Lange, 1967, Phys. Rev. 157, 295
- Harrison, M. R., P. P. Edwards, and J. B. Goodenough, 1985, Philos. Mag. B 52, 679
- Hasegawa, Y., and H. Fukuyama, 1986, J. Phys. Soc. Jpn. 55, 3978
- Hertz, J. A., L. Fleishman, and P. W. Anderson, 1979, Phys. Rev. Lett. 43, 942
- Hines, D. F., and N. E. Frankel, 1979, Phys. Rev. B 20, 972
- Hinks, D. G., B. Da̧browski, J. D. Jorgensen, A. W. Mitchell, D. R. Richards, S. Pei, and D. Shi, 1988a, Nature 333, 836
- Hinks, D. G., D. R. Richards, B. Dabrowski, D. T. Marx, and A. W. Mitchell, 1988b, Nature 335, 419 ibid.336, 604(E)
- Hirsch, J. E., 1985a, Phys. Rev. B 31, 4403
- Hirsch, J. E., 1985b, Phys. Rev. Lett. 54, 1317
- Hirsch, J. E., 1987a, Phys. Rev. B 35, 1851
- Hirsch, J. E., 1987b, Phys. Rev. B 35, 8726
- Hirsch, J. E., 1989a, Phys. Lett. 134, 451
- Hirsch, J. E., 1989b, Phys. Lett. 136, 163
- Hirsch, J. E., and E. Fradkin, 1983, Phys. Rev. B 27, 4302
- Hirsch, J. E., and H. Q. Lin, 1988, Phys. Rev. B 37, 5070
- Hirsch, J. E., and F. Marsiglio, 1989, Phys. Rev. B 39, 11 515
- Hirsch, J. E., and D. J. Scalapino, 1985a, Phys. Rev. B 32, 117
- Hirsch, J. E., and D. J. Scalapino, 1985b, Phys. Rev. B 32, 5639
- Hirsch, J. E., and D. J. Scalapino, 1986, Phys. Rev. Lett. 56, 2732
- Hirsch, J. E., and S. Tang, 1989, Solid State Commun. 69, 987
- Hirsch, J. E., S. Tang, E. Loh, Jr., and D. J. Scalapino, 1988, Phys. Rev. Lett. 60, 1668
- Hohenberg, P. C., 1967, Phys. Rev. 158, 383
- Holstein, T., 1959, Ann. Phys. (N.Y.) 8, 343
- Hore, S. R., and N. E. Frankel, 1975, Phys. Rev. B 12, 2619
- Hore, S. R., and N. E. Frankel, 1976, Phys. Rev. B 14, 1952
- Horn, P. M., D. T. Keane, G. A. Held, J. L. Jordan-Sweet, D. L. Kaiser, F. Holtzberg, and T. M. Rice, 1987, Phys. Rev. Lett. 59, 2772
- Horvatič, M., P. Sérgansan, C. Berthier, P. Butaud, J. Y. Henry, M. Couach, and J. P. Chaminade, 1989, Phys. Rev. B 39, 7332
- Huang, K., and E. Manousakis, 1987, Phys. Rev. B 36, 8302
- Hubbard, J., 1963, Proc. R. Soc. London Ser. A 276, 238
- Hubbard, J., 1964, Proc. R. Soc. London Ser. A 277, 237
- Hüller, A., 1989, Z. Phys. B 76, 445
- Imada, M., 1987, J. Phys. Soc. Jpn. 56, 3793
- Imada, M., and D. J. Scalapino, 1986, Phys. Rev. B 34, 3480
- Imer, J.-M., F. Patthey, B. Dardel, W.-D. Schneider, Y. Baer, Y. Petroff, and A. Zettl, 1989, Phys. Rev. Lett. 62, 336
- Inderhees, S. E., M. B. Salamon, T. A. Friedmann, and D. M. Ginsberg, 1987, Phys. Rev. B 36, 2401
- Inderhees, S. E., M. B. Salamon, N. Goldenfeld, J. P. Rice, B. G. Pazol, D. M. Ginsberg, J. Z. Liu, and G. W. Crabtree, 1988, Phys. Rev. Lett. 60, 1178
- Ionov, S. P., G. V. Ionova, V. S. Lubimov, and E. F. Makarov, 1975, Phys. Status Solidi B 71, 11
- Ionov, S. P., G. V. Ionova, A. I. Maiybaev, L. A. Manakova, and G. K. Semin, 1981, Izv. Akad. Nauk SSSR 45, 589
- Ionov, S. P., G. V. Ionova, A. I. Maiybaev, L. A. Manakova, and G. K. Semin, 1985, Izv. Akad. Nauk SSSR 49, 310
- Ionova, G. V., E. F. Makarov, and S. P. Ionov, 1977, Phys. Status Solidi B 81, 671
- Ishikawa, M., Y. Nakazawa, T. Takabate, A. Kishi, and A. Maesono, 1988, Solid State Commun. 66, 201
- Jérome, D., W. Kang, and S. S. P. Parkin, 1988, J. Appl. Phys. 63, 4005
- Johnston, D. C., J. P. Stokes, D. P. Goshorn, and J. T. Lewandowski, 1987, Phys. Rev. B 36, 4007
- Junod, A., et al., 1987, Europhys. Lett. 4, 247
- Junod, A., A. Bezinge, and J. Muller, 1988, Physica C 152, 50
- Kac, M., and J. Luttinger, 1973, J. Math. Phys. 14, 1626
- Kac, M., and J. Luttinger, 1974, J. Math. Phys. 15, 183
- Kanai, Y., S. Kagoshima, and H. Nagasawa, 1980, Synth. Metals 9, 369
- Kane, C. L., P. A. Lee, and N. Read, 1989, Phys. Rev. B 39, 6880
- Kapitulnik, A., M. R. Beasley, C. Di Castro, and C. Castellani, 1988, Phys. Rev. B 37, 537
- Kapitulnik, A., and G. Kotliar, 1985, Phys. Rev. Lett. 54, 473
- Kastner, M. A., et al., 1988, Phys. Rev. B 37, 111
- Keller, H. J., 1981, in Extended Linear Chain Compounds, edited by J. S. Miller (Plenum, New York), Vol. 1, p. 357
- Khomskii, D. I., and A. K. Zvezdin, 1988, Solid State Commun. 66, 651
- Kim, Y. H., C. M. Foster, A. J. Heeger, S.Cox, L. Acedo, and G. Stucky, 1989, Phys. Scr. 27, 19
- Kitaoka, Y., K. Ishida, K. Fujiwara, and K. Asayama, 1988, talk given at the IBM Workshop on High- Superconductivity, Oberlech, Austria, unpublished
- Kitazawa, K., M. Naito, T. Itoh, and S. Tanaka, 1985, J. Phys. Soc. Jpn. 54, 2682
- Kitazawa, K., S. Uchida, and S. Tanaka, 1985, Physica B 135, 505
- Kivelson, S., W. P. Su, J. R. Schrieffer, and A. J. Heeger, 1987, Phys. Rev. Lett. 58, 1889
- Kivelson, S., W. P. Su, J. R. Schrieffer, and A. J. Heeger, 1988, Phys. Rev. Lett. 60, 72
- Klinger, M. I., 1985, Usp. Fiz. Nauk 146, 105 [Sov. Phys. Usp. 28, 391 (1985)]
- Kosterlitz, J. M., D. R. Nelson, and M. E. Fisher, 1976, Phys. Rev. B 13, 412
- Kostyrko, T., 1987, Phys. Status Solidi B 143, 149
- Kotliar, G., and A. Kapitulnik, 1986, Phys. Rev. B 33, 3146
- Kresin, V. Z., G. Deutscher, and S. A. Wolf, 1988, J. Supercond. 1, 327
- Krivnov, V. Ya., and A. A. Ovchinnikov, 1974, Zh. Eksp. Teor. Fiz. 67, 1568 [Sov. Phys. JETP 40, 781 (1984)]
- Kubo, K., and S. Takada, 1983, J. Phys. Soc. Jpn. 52, 2108
- Kulik, I. O., 1984, Physica B 126, 280
- Kulik, I. O., 1987, Fiz. Nizk. Temp. 13, 879 [Sov. J. Low Temp. Phys. 13, 505 (1987)]
- Kulik, I. O., 1988, Fiz. Nizk. Temp. 14, 209 [Sov. J. Low Temp. Phys. 14, 116 (1988)]
- Kulik, I. O., and A. G. Pedan, 1980, Zh. Eksp. Teor. Fiz. 79, 1469 [Sov. Phys. JETP 52, 742 (1980)]
- Kuramoto, Y., and T. Watanabe, 1987, Solid State Commun. 63, 821
- Lakkis, S., C. Schlenker, B. K. Chakraverty, R. Buder, and M. Marezio, 1976, Phys. Rev. B 14, 1429
- Leggett, A. J., 1980a, in Modern Trends in the Theory of Condensed Matter, edited by A. Pekalski and J. Przystawa (Springer, Berlin/New York), p. 13
- Leggett, A. J., 1980b, J. Phys. (Paris) 41, C7, 19
- Li, Y. M., 1987, Solid State Commun. 62, 677
- Lieb, E., and F. Wu, 1968, Phys. Rev. Lett. 20, 1445
- Lieb, E. H., 1989, Phys. Rev. Lett. 62, 1201
- Lin, H. Q., J. E. Hirsch, and D. J. Scalapino, 1988, Phys. Rev. B 37, 7359
- Little, W. A., 1964, Phys. Rev. A134, 1416
- Little, W. A., 1981, Int. J. Quantum Chem. 15, 545
- Liu, K. S., and M. E. Fisher, 1973, J. Low Temp. Phys. 10, 655
- Lobb, J., 1987, Phys. Rev. B 36, 3930
- Loh, E. Y., Jr., T. Martin, P. Prelovšek, and D. K. Campbell, 1988, Phys. Rev. B 38, 2494
- Löwen, H., 1988, Phys. Rev. B 37, 8661
- Ma, M. B., B. I. Halperin, and P. A. Lee, 1986, Phys. Rev. B 34, 3136
- Ma, M., and P. A. Lee, 1985, Phys. Rev. B 32, 5658
- Ma, S.-K., 1972, Phys. Rev. Lett. 29, 1311
- Manthiram, A., X. X. Tang, and J. B. Goodenough, 1988, Phys. Rev. B 37, 3734
- Marsiglio, F., and J. F. Hirsch, 1989, Physica C 139, 157
- Martin, S., A. T. Fiory, R. M. Fleming, L. F. Schneemeyer, and J. V. Waszczak, 1988, Phys. Rev. Lett. 60, 2194
- Matsubara, T., and H. Matsuda, 1956, Prog. Theor. Phys. 16, 569
- Matsubara, T., and H. Matsuda, 1957, Prog. Theor. Phys. 17, 19
- Matsuda, H., and T. Tsuneto, 1970, Prog. Theor. Phys. Suppl. 46, 411
- Mattheiss, L. F., E. M. Gyorgy, and D. W. Johnston, Jr., 1988, Phys. Rev. B 37, 3745
- Mazumdar, S., 1988, Solid State Commun. 66, 427
- Menushenkov, A. P., 1986, "Structure of x ray spectra of ," preprint, Moscow Physics and Engineering Institute, Moscow (in Russian)
- Micnas, R., 1988a (unpublished)
- Micnas, R., 1988b (unpublished)
- Micnas, R., 1988c (unpublished)
- Micnas, R., J. Ranninger, and S. Robaszkiewicz, 1987a, J. Magn. Magn. Mater. 63-64, 420
- Micnas, R., J. Ranninger, and S. Robaszkiewicz, 1987b, Phys. Rev. B 36, 4051
- Micnas, R., J. Ranninger, and S. Robaszkiewicz, 1988a, J. Phys. C 21, L145
- Micnas, R., J. Ranninger, and S. Robaszkiewicz, 1988b, J. Phys. (Paris) Suppl. 49, C8-2221
- Micnas, R., J. Ranninger, and S. Robaszkiewicz, 1989, Phys. Rev. B 39, 116 53
- Micnas, R., J. Ranninger, S. Robaszkiewicz, and S. Tabor 1988, Phys. Rev. B 37, 9410
- Micnas, R., and S. Robaszkiewicz, 1988a, "Thermodynamics of local pair superconductors with anisotropic lattice structures," preprint, Adam Mickiewicz University, Poznań, Poland
- Micnas, R., and S. Robaszkiewicz, 1988b, "Thermodynamic and electrodynamic properties of local pair superconductors: Effects of long range Coulomb interaction," preprint, Adam Mickiewicz University, Poznań, Poland
- Micnas, R., S. Robaszkiewicz, and K. A. Chao, 1983, J. Magn. Magn. Mater. 31-34, 365
- Micnas, R., S. Robaszkiewicz, and K. A. Chao, 1984, Phys. Rev. B 29, 2784
- Micnas, R., S. Robaszkiewicz, and K. A. Chao, 1985a, Physica A 131, 393
- Micnas, R., S. Robaszkiewicz, and K. A. Chao, 1985b, Physica A 132, 504
- Miller, J. S., and A. J. Epstein, 1976, Prog. Inorg. Chem. 20, 2
- Millis, A. J., and K. M. Rabe, 1988, Phys. Rev. B 38, 8908
- Mitsuda, S., G. Shirane, S. K. Sinha, D. C. Johnston, M. S. Alvarez, D. Vaknin, and D. E. Moncton, 1987, Phys. Rev. B 36, 822
- Miyake, K., 1983, Prog. Theor. Phys. 69, 1794
- Miyake, K., T. Matsuura, H. Jichu, and Y. Nagaoka, 1984, Prog. Theor. Phys. 72, 1063
- Miyake, K., S. Schmitt-Rink, and C. V. Varma, 1986, Phys. Rev. B 34, 6554
- Moiseev, D. P., S. K. Uvarova, and M. B. Fenik, 1981, Fiz. Tverd. Tela (Leningrad) 23, 2347 [Sov. Phys. Solid State 23, 1371 (1981)]
- Mozihes, B. Ya., and I. A. Drabkin, 1983, Fiz. Tverd. Tela (Leningrad) 25, 1974 [Sov. Phys. Solid State 25, 1139 (1983)]
- Mullin, W. J., 1971a, Phys. Rev. Lett. 26, 611
- Mullin, W. J., 1971b, Phys. Rev. A 4, 1247
- Nagosa, N., 1989, Phys. Rev. B 39, 2188
- Nagasawa, S., and K. Hida, 1988, J. Phys. Soc. Jpn. 57, 3506
- Nasu, K., 1985, J. Phys. Soc. Jpn. 54, 1933
- Nasu, K., 1987, Phys. Rev. B 35, 1748
- Nasu, K., 1988, Phys. Rev. B 37, 5075
- Nevitt, M. F., G. W. Crabtree, and T. E. Klipper, 1987, Phys. Rev. B 36, 2398
- Ng, K. W., R. N. Shelton, and E. L. Wolf, 1985, Phys. Lett. 110A, 423
- Nozières, Ph., and S. Schmitt-Rink, 1985, J. Low Temp. Phys. 59, 195
- Nücker, N., J. Fink, J. C. Fuggle, J. P. Durham, and W. M. Temmerman, 1988, Phys. Rev. B 37, 5158
- Nücker, N., J. Fink, B. Renker, D. Ewert, C. Politis, J. W. P. Wejis, and J. C. Fuggle, 1987, Z. Phys. B 67, 9
- Nuñez Regueiro, M. D., and A. A. Aligia, 1988, Phys. Rev. Lett. 61, 1889
- Oh, B., K. Char, A. D. Kent, M. Naito, M. R. Beasley, T. H. Geballe, R. H. Hammond, A. Kapitulnik, and J. M. Graybeal, 1988, Phys. Rev. B 37, 7861
- Ohkawa, F. J., 1984, J. Phys. Soc. Jpn. 53, 3568
- Ohkawa, F. J., 1988, J. Phys. Soc. Jpn. 57, 3920
- Ohkawa, F. J., and H. Fukuyama, 1984, J. Phys. Soc. Jpn. 53, 4344
- Oleś, A. M., R. Micnas, K. A. Chao, and S. Robaszkiewicz, 1984, Phys. Lett. 102A, 323
- Onoda, M., and H. Nagasawa, 1983, J. Phys. Soc. Jpn. 52, 2231
- Onoda, M., T. Takahashi, and H. Nagasawa, 1982, J. Phys. Soc. Jpn. 51, 3868
- Panson, A. J., A. I. Braginski, J. R. Gavaler, J. K. Hulm, M. A. Janocko, H. C. Pohl, A. M. Stewart, J. Talvacchio, and G. R. Wagner, 1987, Phys. Rev. B 35, 8774
- Pedan, A. G., and I. O. Kulik, 1982, Fiz. Nizk. Temp. 8, 236 [Sov. J. Low Temp. Phys. 8, 118 (1982)]
- Pincus, P., P. Chaikin, and C. F. Coll III, 1973, Solid State Commun. 12, 1265
- Prelovšek, P., T. M. Rice, and F.-C. Zhang, 1987, J. Phys. C 20, L229
- Que, W. M., and G. Kirczenov, 1987, Solid State Commun. 64, 1053
- Randeira, M., J. M. Duan, and L. Y. Shieh, 1989, Phys. Rev. Lett. 62, 981
- Ranninger, J., R. Micnas, and S. Robaszkiewicz, 1988, Ann. Phys. (Paris) 13, 455
- Ranninger, J., R. Micnas, and S. Robaszkiewicz, 1989, in High Superconductors Electronic Structure, edited by A. Bianconi and A. Marcelli (Pergamon, New York), p. 51
- Ranninger, J., and S. Robaszkiewicz, 1985, Physica B 135, 468
- Ranninger, J., S. Robaszkiewicz, A. Sulpice, and R. Tournier, 1987, Europhys. Lett. 3, 347
- Ranninger, J., and W. Thirring, 1963, Z. Phys. 171, 312
- Rao, C. N. R., 1988, Ann. Phys. (Paris) 13, 327
- Rao, C. N. R., P. Ganguly, M. S. Hedge, and D. D. Sarma, 1987, J. Am. Chem. Soc. 109, 6893
- Reger, J. D., and A. P. Young, 1988, Phys. Rev. B 37, 5978
- Rice, T. M., 1987, Z. Phys. 67, 141
- Rice, T. M., and L. Sneddon, 1981, Phys. Rev. Lett. 47, 689
- Robaszkiewicz, S., 1979, Acta Phys. Pol. A 45, 75
- Robaszkiewicz, S., 1984, Physica B+C 125, 150
- Robaszkiewicz, S., R. Micnas, and K. A. Chao, 1981a, Phys. Rev. B 23, 1447
- Robaszkiewicz, S., R. Micnas, and K. A. Chao, 1981b, Phys. Rev. B 24, 1579
- Robaszkiewicz, S., R. Micnas, and K. A. Chao, 1981c, Solid State Commun. 40, 403
- Robaszkiewicz, S., R. Micnas, and K. A. Chao, 1981d, Phys. Rev. B 24, 4018
- Robaszkiewicz, S., R. Micnas, and K. A. Chao, 1982, Phys. Rev. B 26, 3915
- Robaszkiewicz, S., R. Micnas, and J. Ranninger, 1987, Phys. Rev. B 37, 180
- Robin, M. R., and P. Day, 1967, Adv. Radiochem. 10, 247
- Rogers, J. W., Jr., N. D. Shinn, J. E. Schirber, E. L. Venturini, D. S. Ginley, and B. Morosin, 1988, Phys. Rev. B 38, 5021
- Rossa-Mignod, J., P. Burlet, M. J. G. M. Jurgens, and J. Y. Henry, 1988, Physica C 152, 19
- Ruckenstein, A. E., P. J. Hirschfeld, and J. Appel, 1987, Phys. Rev. B 36, 857
- Saint-Paul, M., J. L. Tholence, H. Noel, J. C. Levet, M. Poten, and P. Gougeon, 1989, Solid State Commun. 69, 1161
- Sakudo, T., H. Uwe, T. Suzuki, J. Fujita, J. Shiozawa, and M. Isobe, 1986, J. Phys. Soc. Jpn. 55, 314
- Salamon, M. B., 1989, in Physical Properties of High Temperature Superconductors I, edited by D. M. Ginsberg (World Scientific, Singapore), p. 40
- Salje, E., and B. Güttler, 1984, Philos. Mag. B 50, 607
- Sarma, D. D., K. Sredhar, P. Ganguly, and C. N. R. Rao, 1987, Phys. Rev. B 36, 2371
- Sarma, D. D., and C. N. R. Rao, 1987a, J. Phys. C 20, L659
- Sarma, D. D., and C. N. R. Rao, 1987b, Solid State Commun. 65, 47
- Savransky, S. D., 1986, J. Non-Cryst. Solids 83, 235
- Scalapino, D. J., E. Loh, Jr., and J. E. Hirsch, 1986, Phys. Rev. B 34, 8190
- Scalapino, D. J., E. Loh, Jr., and J. E. Hirsch, 1987, Phys. Rev. B 35, 6694
- Scalettar, R. T., E. Y. Loh, J. E. Gubernatis, A. Moreo, S. R. White, D. J. Scalapino, R. L. Sugar, and E. Dagotto, 1989, Phys. Rev. Lett. 62, 1407
- Scalettar, R. T., D. J. Scalapino, R. L. Sugar, and D. Toussaint, 1989, Phys. Rev. B 39, 4711
- Schafroth, R. M., 1955, Phys. Rev. 100, 463
- Schafroth, R. M., J. M. Blatt, and S. T. Butler, 1957, Helv. Phys. Acta 30, 93
- Schirber, J. E., B. Morosin, and D. S. Ginley, 1989, Physica C 157, 237
- Schirmer, O. F., and E. Salje, 1980, J. Phys. C 13, L1067
- Schlenker, C., 1985, in Physics of Disordered Materials, edited by D. Adler, H. Fritzsche, and S. Ovshinsky (Plenum, New York), p. 369
- Schlenker, C., S. Ahmed, and M. Gourmula, 1979, J. Phys. C 12, 3503
- Schlenker, C., and M. Marezio, 1980, Philos. Mag. 42, 453
- Schlesinger, Z., R. T. Collins, D. L. Kaiser, and F. Holtzberg, 1987, Phys. Rev. Lett. 59, 1958
- Schmitt-Rink, S., C. M. Varma, and A. E. Ruckenstein, 1988, Phys. Rev. Lett. 60, 2793
- Schmitt-Rink, S., C. M. Varma, and A. E. Ruckenstein, 1989, Phys. Rev. Lett. 63, 445
- Schneider, T., and A. Politi, 1987, J. Appl. Phys. 61, 3959
- Schrieffer, J. R., and P. A. Wolff, 1966, Phys. Rev. 149, 491
- Schrieffer, J. R., X.-G. Wen, and S.-C. Zhang, 1988, Phys. Rev. Lett. 60, 944
- Schüttler, H.-B., and A. J. Fedro, 1988, Phys. Rev. B 38, 9063
- Schüttler, H.-B., M. Jarrell, and D. J. Scalapino, 1987, Phys. Rev. Lett. 58, 1147
- Schüttler, H.-B., M. Jarrell, and D. J. Scalapino, 1989, Phys. Rev. B 39, 6501
- Scott, J., J. L. Bredas, J. H. Kaufman, P. Pfluger, G. B. Street, and K. Yakushi, 1983, Mol. Cryst. Liq. Cryst. 118, 163
- Shafer, M. W., T. Penney, and B. L. Olsen, 1987, Phys. Rev. B 36, 4047
- Shiba, H., 1972, Prog. Theor. Phys. 48, 2171
- Shirane, G., Y. Endoh, R. J. Birgenau, M. A. Kastner, Y. Hidaka, M. Oda, M. Suzuki, and T. Murakami, 1987, Phys. Rev. Lett. 59, 1613
- Shraiman, B. I., and E. D. Siggia, 1988, Phys. Rev. Lett. 60, 740
- Šimanek, E., 1979, Solid State Commun. 32, 731
- Sleight, A. W., 1988, Lecture given at Les Houches Workshop, "Superconductivity: New Models, New Applications," March, 1988, unpublished
- Sleight, A., 1989, Proceedings of the Robert Welch Foundation, Conferences on Chemical Research XXXII, in press
- Sleight, A. W., J. L. Gillson, and P. E. Bierstedt, 1975, Solid State Commun. 17, 27
- Sobyanin, A. A., 1988, Physica C 15-155, 1203
- Stechel, E. B., and D. R. Jennison, 1988, Phys. Rev. B 38, 4632
- Steiner, P., V. Kinsinger, I. Sander, B. Siegwant, S. Hufner, and C. Politis, 1987, Z. Phys. B 67, 19
- Steiner, P., et al., 1988, Z. Phys. B 69, 449
- Sugai, S., 1989, Solid State Commun., in press
- Sugai, S., Y. Enomoto, and T. Murakami, 1989, Solid State Commun., in press
- Suzumura, Y., Y. Hasegawa, and H. Fukuyama, 1988a, J. Phys. Soc. Jpn. 57, 401
- Suzumura, Y., Y. Hasegawa, and H. Fukuyama, 1988b, J. Phys. Soc. Jpn. 57, 2768
- Tajima, S., S. Uchida, A. Masaki, H. Takagi, K. Kitazawa, S. Tanaka, and A. Katsui, 1985, Phys. Rev. B 32, 6305
- Tajima, S., S. Uchida, A. Masaki, H. Takagi, S. Tanaka, and S. Sugai, 1987, Phys. Rev. B 35, 696
- Takahashi, M., 1969, Prog. Theor. Phys. 42, 1098
- Taliani, C., R. Zamboni, G. Ruani, F. C. Matacotta, and K. I. Pokhodnya, 1988, Solid State Commun. 66, 487
- Thanh, T. D., A. Koma, and S. Tanaka, 1980, Appl. Phys. 22, 205
- Thouless, D. J., 1960, Ann. Phys. (N.Y.) 10, 553
- Ting, C. S., K. L. Nagai, and C. T. White, 1980, Phys. Rev. B 22, 2318
- Torrance, J. B., Y. Tokura, A. I. Nazzal, A. Bezinge, T. C. Huang, and S. S. P. Parkin, 1988, Phys. Rev. Lett. 61, 1127
- Tournier, R., A. Sulpice, P. Lejay, O. Laborde, and J. Beille, 1988, J. Magn. Magn. Mater. 76-77, 552
- Tozer, S. W., A. W. Kleinsasser, T. Penney, D. Kaiser, and F. Holtzberg, 1987, Phys. Rev. Lett. 59, 1768
- Tranquada, J. M., S. M. Heald, and A. R. Moodenbaugh, 1987, Phys. Rev. B 36, 5263
- Tranquada, J. M., et al., 1988, Phys. Rev. Lett. 60, 156
- Tricker, M. J., I. Adams, and J. M. Thomas, 1972, Inorg. Nucl. Chem. Lett. 8, 633
- Uchida, S., K. Kitazawa, and S. Tanaka, 1987, Phase Transitions 8, 95
- Uchida, S., S. Tajima, A. Masaki, S. Sugai, K. Kitazawa, and S. Tanaka, 1985, J. Phys. Soc. Jpn. 54, 4395
- Uchida, S., H. Takagi, S. Tanaka, K. Nakano, N. Miura, K. Kishio, K. Kitazawa, and K. Fueki, 1987, Jpn. J. Appl. Phys. 26, L196
- Uemura, Y. J., W. J. Kossler, X.H. Yu, J. R. Kempton, H. E. Schone, D. Opie, C. E. Stronach, D. C. Johnston, M. S. Alvarez, and D. P. Goshorn, 1987, Phys. Rev. Lett. 59, 1045
- Uemura, Y. J., et al., 1988, Phys. Rev. B 38, 909
- Uemura, Y. J., et al., 1989, Phys. Rev. Lett. 62, 2317
- Vaknin, D., S. K. Sinha, D. E. Moncton, D. C. Johnston, J. M. Newsam, C. R. Safinya, and H. E. King, Jr., 1987, Phys. Rev. Lett. 58, 2802
- Varma, C. M., 1988a, in High- Superconductors, Proceedings of an International Discussion Meeting, Schloss Mauterndorf, Austria, edited by H. W. Weber (Plenum, New York)
- Varma, C. M., 1988b, Phys. Rev. Lett. 61, 2713
- Varma, C. M., S. Schmitt-Rink, and E. Abrahams, 1987a, in Novel Superconductivity, edited by S. A. Wolf and V. Z. Kresin (Plenum, New York), p. 355
- Varma, C. M., S. Schmitt-Rink, and E. Abrahams, 1987b, Solid State Commun. 62, 681
- Vidal, F., J. A. Veira, J. Maza, F. García-Alvarado, E. Morán, and M. A. Alario, 1988, J. Phys. C 21, L599
- Voronel, A. V., O. Linsky, A. Kislink, and S. Drislikh, 1988, Physica C 153, 1068
- Warren, W. W., Jr., R. E. Walstedt, G. F. Brennert, G. P. Espinoza, and J. P. Remeika, 1987, Phys. Rev. Lett. 60, 1860
- Warren, W. W., Jr., R. E. Walstedt, G. F. Brennert, R. J. Cava, R. Tycko, R. F. Bell, and G. Dabbagh, 1989, Phys. Rev. Lett. 62, 1193
- Watkins, G. D., 1984, in Festkörperprobleme (Advances in Solid State Physics), Vol. 24, edited by H. J. Queisser (Pergamon/Vieweg, Braunschweig), p. 163
- Weber, W., 1988a, in Festkörperprobleme (Advances in Solid State Physics), Vol. 28, edited by U. Rössler (Vieweg, Braunschweig), p. 141
- Weber, W., 1988b, quoted in Varma (1988b), p. 2716
- Weber, W., and L. F. Mattheiss, 1987, Physica B 148, 271
- Weber, W., and L. F. Mattheiss, 1988, Phys. Rev. B 37, 599
- Weichmann, P. B., and M. E. Fisher, 1986, Phys. Rev. B 34, 7652
- Weichmann, P. B., M. Rasolt, M. E. Fisher, and M. J. Stephen, 1986, Phys. Rev. B 33, 4632
- Welp, U., W. K. Kwok, G. W. Crabtree, H. Claus, K. G. Vandervoort, B. Da̧browski, A. W. Mitchell, D. R. Richards, D. T. Marx, and D. G. Hinks, 1988, Physica C 156, 27
- Welp, U., W. K. Kwok, G. W. Crabtree, K. G. Vandervoort, and J. Z. Liu, 1989, Phys. Rev. Lett. 62, 1908
- Wen, X. G., and R. Kan, 1988, Phys. Rev. B 37, 595
- Wheatley, J. M., T. C. Hsu, and P. W. Anderson, 1988, Phys. Rev. B 37, 5897
- White, C. T., and E. N. Economou, 1978, Phys. Rev. B 18, 3959
- White, S. R., D. J. Scalapino, N. E. Bickers, and R. T. Scalettar, 1989, Phys. Rev. B 39, 839
- Whitlock, R. T., and P. R. Zilsel, 1963, Phys. Rev. 131, 2409
- Wilson, J. A., 1987, J. Phys. C 20, L911
- Wilson, J. A., 1988, J. Phys. C 21, 2067
- Worthington, T. K., W. J. Gallagher, and T. R. Dinger, 1987, Phys. Rev. Lett. 59, 1160
- Wu, M. K., J. R. Ashburn, C. J. Tong, P. H. Hor, R. L. Meng, L. Gao, E. J. Huang, Y. Q. Wang, and C. W. Chu, 1987, Phys. Rev. Lett. 58, 908
- Xing, D. Y., M. Liu, and C. S. Ting, 1988, Phys. Rev. B 37, 9769
- Yamashita, J., and T. Kurosawa, 1958, J. Phys. Chem. Solids 5, 34
- Yu, C. C., and P. W. Anderson, 1984, Phys. Rev. B 29, 6165
- Yu, J., S. Massida, A. J. Freeman, and D. D. Koeling, 1987, Phys. Lett. A 122, 203
- Yu, R. C., M. J. Naughton, X. Yan, P.M. Chaikin, F. Holtzberg, R. L. Greene, J. Stuart, and P. Davies, 1988, Phys. Rev. B 37, 7963
- Zaanen, J., and A. M. Oleś, 1988, Phys. Rev. B 37, 9423
- Zhang, F. C., 1989, Phys. Rev. B 39, 7375
- Zhang, F. C., and T. M. Rice, 1988, Phys. Rev. B 37, 3759
- Zhang, F. C., and T. M. Rice, 1989, "On the validity of the model," preprint, ETH, Zürich
- Zheng, H., 1988, Phys. Rev. B 38, 11865