Analysis of pinning effects in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">YBa</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Cu</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>7</mn><mi mathvariant="normal">−</mi><mi mathvariant="normal">δ</mi></mrow></msub></mrow></math> single crystals after fast neutron irradiation

F. M. Sauerzopf; H. P. Wiesinger; H. W. Weber; G. W. Crabtree

doi:10.1103/PhysRevB.51.6002

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Analysis of pinning effects in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystals after fast neutron irradiation

F. M. Sauerzopf, H. P. Wiesinger, and H. W. Weber

G. W. Crabtree

Atominstitut der Österreichischen Universitäten, A-1020 Vienna, Austria

Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439

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Phys. Rev. B 51, 6002 – Published 1 March, 1995

DOI: https://doi.org/10.1103/PhysRevB.51.6002

Abstract

Flux-pinning effects were studied by sequentially irradiating a ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystal to fast neutron fluences of 8× $10^{21}$ $m^{- 2}$ . From superconducting quantum interference device magnetometry, the transition temperature $T_{c}$ and the magnetic moments were obtained for fields parallel and perpendicular to the crystallographic c axis. Irreversibility lines and critical current densities were evaluated as a function of neutron fluence. In order to explain the data, a qualitative model is developed that is based on the layered structure of the system and the nature of the various defects introduced by irradiation. Because of the dominating influence of large defect cascades on flux pinning, different summation models have to be employed, depending on temperature, field orientation, field strength, and pin density.

References (28)

A. Umezawa, G. W. Crabtree, J. Z. Liu, H. W. Weber, W. K. Kwok, L. H. Nunez, T. J. Moran and C. H. Sowers, Phys. Rev. B 36, 7151 (1989).
F. M. Sauerzopf, H. P. Wiesinger, W. Kritscha, H. W. Weber, G. W. Crabtree and J. Z. Liu, Phys. Rev. B 43, 3091 (1991).
H. W. Weber, H. Böck, E. Unfried and L. R. Greenwood, J. Nucl. Mater. 137, 236 (1986).
L. R. Greenwood (unpublished).
M. C. Frischherz, Ph.D. thesis, Technical University of Vienna, 1992 (unpublished).
F. P. Korshunov, Supercond. 4, 311 (1991).
H. P. Wiesinger, Ph.D. thesis, Technical University of Vienna, 1992 (unpublished).
M. C. Frischherz, M. A. Kirk, J. Farmer, L. R. Greenwood and H. W. Weber, Physica C 232, 309 (1994).
R. M. Schalk, G. Samadi-Hosseinali, H. W. Weber, Z. H. Barber, P. Przyslupski, J. E. Evetts, A. Pönninger, P. Schwab, S. Proyer, A. Kochemasov and D. Bäuerle, Cryogenics 33, 369 (1993).
M. Tachiki and S. Takahashi, Solid State Commun. 70, 291 (1989).
A. I. Larkin and Yu. N. Ovchinnikov, J. Low Temp. Phys. 34, 409 (1979).
P. H. Kes and J. van den Berg, in Studies of High Temperature Superconductors, edited by A. Narlikar (NOVA Scientific, New York, 1990), Vol. 5, p. 83.
J. Giapintzakis, W. C. Lee, J. P. Rice, D. M. Ginsberg and I. M. Robertson, Phys. Rev. B 45, 10677 (1992).
W. K. Kwok, Supercond. Sci. Technol. 4, 106 (1991).
M. C. Frischherz, M. A. Kirk, J. P. Zhang and H. W. Weber, Philos. Mag. A 67, 1347 (1993).
B. M. Vlcek, M. C. Frischherz, S. Fleshler, U. Welp, J. Z. Liu, J. Downey, K. G. Vandervoort, G. W. Crabtree and M. A. Kirk, Phys. Rev. B 46, 6441 (1992).
H. P. Wiesinger, F. M. Sauerzopf, H. W. Weber, H. Gerstenberg and G. W. Crabtree, Europhys. Lett. 20, 541 (1992).
A. Umezawa, G. W. Crabtree, U. Welp, W. K. Kwok, K. G. Vandervoort and J. Z. Liu, Phys. Rev. B 42, 8744 (1990).
U. Welp, S. Fleshler, W. K. Kwok, K. G. Vandervoort, J. Downey, B. Veal, and G. W. Crabtree, in Physical Phenomena at High Fields, edited by E. Manousakis, P. Schlottmann, P. Kumar, K. S. Bedell, F. M. Müller (Addison-Wesley, New York, 1992), p. 403.
E. H. Brandt, J. Low Temp. Phys. 26, 709 (1976).
A. Sudbo and E. H. Brandt, Phys. Rev. Lett. 66, 1781 (1991).
V. G. Kogan and L. J. Campbell, Phys. Rev. Lett. 62, 1552 (1989).
A. M. Campbell and J. E. Evetts, Critical Currents in Superconductors (Taylor&Francis, London, 1972), p. 115f.
H. W. Weber, E. Seidl, Ch. Laa, E. Schachinger, M. Prohammer, A. Junod and D. Eckert, Phys. Rev. B 44, 7585 (1991).
E. H. Brandt, Phys. Rev. Lett. 63, 1106 (1989).
M. Wacenovsky, F. M. Sauerzopf, R. M. Schalk, H. W. Weber, M. Murakami, M. Baran, and D. K. Finnemore, Physica B 194-196, 2139 (1994).
M. C. Frischherz, C. Czurda, H. W. Weber, and M. Murakami, in Critical Currents in Superconductors, edited by H. W. Weber (World Scientific, Singapore, 1994), p. 141.
F. M. Sauerzopf, H. P. Wiesinger, H. W. Weber, G. W. Crabtree, M. C. Frischherz and M. A. Kirk, Supercond. Sci. Technol. 5, 105 (1992).

[c1] A. Umezawa, G. W. Crabtree, J. Z. Liu, H. W. Weber, W. K. Kwok, L. H. Nunez, T. J. Moran and C. H. Sowers, Phys. Rev. B 36, 7151 (1989).

[c2] F. M. Sauerzopf, H. P. Wiesinger, W. Kritscha, H. W. Weber, G. W. Crabtree and J. Z. Liu, Phys. Rev. B 43, 3091 (1991).

[c3] H. W. Weber, H. Böck, E. Unfried and L. R. Greenwood, J. Nucl. Mater. 137, 236 (1986).

[c4] L. R. Greenwood (unpublished).

[c5] M. C. Frischherz, Ph.D. thesis, Technical University of Vienna, 1992 (unpublished).

[c6] F. P. Korshunov, Supercond. 4, 311 (1991).

[c7] H. P. Wiesinger, Ph.D. thesis, Technical University of Vienna, 1992 (unpublished).

[c8] M. C. Frischherz, M. A. Kirk, J. Farmer, L. R. Greenwood and H. W. Weber, Physica C 232, 309 (1994).

[c9] R. M. Schalk, G. Samadi-Hosseinali, H. W. Weber, Z. H. Barber, P. Przyslupski, J. E. Evetts, A. Pönninger, P. Schwab, S. Proyer, A. Kochemasov and D. Bäuerle, Cryogenics 33, 369 (1993).

[c10] M. Tachiki and S. Takahashi, Solid State Commun. 70, 291 (1989).

[c11] A. I. Larkin and Yu. N. Ovchinnikov, J. Low Temp. Phys. 34, 409 (1979).

[c12] P. H. Kes and J. van den Berg, in Studies of High Temperature Superconductors, edited by A. Narlikar (NOVA Scientific, New York, 1990), Vol. 5, p. 83.

[c13] J. Giapintzakis, W. C. Lee, J. P. Rice, D. M. Ginsberg and I. M. Robertson, Phys. Rev. B 45, 10677 (1992).

[c14] W. K. Kwok, Supercond. Sci. Technol. 4, 106 (1991).

[c15] M. C. Frischherz, M. A. Kirk, J. P. Zhang and H. W. Weber, Philos. Mag. A 67, 1347 (1993).

[c16] B. M. Vlcek, M. C. Frischherz, S. Fleshler, U. Welp, J. Z. Liu, J. Downey, K. G. Vandervoort, G. W. Crabtree and M. A. Kirk, Phys. Rev. B 46, 6441 (1992).

[c17] H. P. Wiesinger, F. M. Sauerzopf, H. W. Weber, H. Gerstenberg and G. W. Crabtree, Europhys. Lett. 20, 541 (1992).

[c18] A. Umezawa, G. W. Crabtree, U. Welp, W. K. Kwok, K. G. Vandervoort and J. Z. Liu, Phys. Rev. B 42, 8744 (1990).

[c19] U. Welp, S. Fleshler, W. K. Kwok, K. G. Vandervoort, J. Downey, B. Veal, and G. W. Crabtree, in Physical Phenomena at High Fields, edited by E. Manousakis, P. Schlottmann, P. Kumar, K. S. Bedell, F. M. Müller (Addison-Wesley, New York, 1992), p. 403.

[c20] E. H. Brandt, J. Low Temp. Phys. 26, 709 (1976).

[c21] A. Sudbo and E. H. Brandt, Phys. Rev. Lett. 66, 1781 (1991).

[c22] V. G. Kogan and L. J. Campbell, Phys. Rev. Lett. 62, 1552 (1989).

[c23] A. M. Campbell and J. E. Evetts, Critical Currents in Superconductors (Taylor&Francis, London, 1972), p. 115f.

[c24] H. W. Weber, E. Seidl, Ch. Laa, E. Schachinger, M. Prohammer, A. Junod and D. Eckert, Phys. Rev. B 44, 7585 (1991).

[c25] E. H. Brandt, Phys. Rev. Lett. 63, 1106 (1989).

[c26] M. Wacenovsky, F. M. Sauerzopf, R. M. Schalk, H. W. Weber, M. Murakami, M. Baran, and D. K. Finnemore, Physica B 194-196, 2139 (1994).

[c27] M. C. Frischherz, C. Czurda, H. W. Weber, and M. Murakami, in Critical Currents in Superconductors, edited by H. W. Weber (World Scientific, Singapore, 1994), p. 141.

[c28] F. M. Sauerzopf, H. P. Wiesinger, H. W. Weber, G. W. Crabtree, M. C. Frischherz and M. A. Kirk, Supercond. Sci. Technol. 5, 105 (1992).

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Analysis of pinning effects in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystals after fast neutron irradiation

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References (28)

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Analysis of pinning effects in YBa2Cu3O7−δ single crystals after fast neutron irradiation

Abstract

References (28)

Analysis of pinning effects in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ single crystals after fast neutron irradiation