Thermoreflectance of V, Nb, and paramagnetic Cr

J. H. Weaver; D. W. Lynch; C. H. Culp; R. Rosei

doi:10.1103/PhysRevB.14.459

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Thermoreflectance of V, Nb, and paramagnetic Cr

J. H. Weaver^*

D. W. Lynch and C. H. Culp^‡

R. Rosei^†

Ames Laboratory-ERDA and Department of Physics, Iowa State University, Ames, Iowa 50010
Synchrotron Radiation Center, University of Wisconsin-Madison, Stoughton, Wisconsin 53589

Ames Laboratory-ERDA and Department of Physics, Iowa State University, Ames, Iowa 50010

Istituto di Fisica dell'Universita di Roma, Roma, Italy

^*Supported under NSF Grant No. DMR-7415089.
^†Gruppo Nazionale di Struttura della Material (GNSM) of the Consiglio Nazionale delle Ricerche.
^‡Present address: Interand Corporation, Chicago, Ill. 60611.

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Phys. Rev. B 14, 459 – Published 15 July, 1976

DOI: https://doi.org/10.1103/PhysRevB.14.459

Abstract

Thermoreflectance measurements of V, Nb, and Cr films were performed near 80 and 340 K to investigate the electronic properties of these metals. The thermoreflectance spectra $\frac{Δ R}{R}$ were Kramers-Kronig analyzed to determine the temperature dependence of the dielectric functions. The results were compared with previous derivative measurements of Mo and with static measurements of the optical reflectance of the bcc metals. Interpretation of the structures was guided by recent band calculations. It was shown that the observed features reflect the behavior of large volumes of the Brillouin zone rather than well-defined singularities.

References (20)

J. H. Weaver, D. W. Lynch, and C. G. Olson, Phys. Rev. B 7, 4311 (1973), Nb
J. H. Weaver, D. W. Lynch, and C. G. Olson, Phys. Rev. B 10, 501 (1974), V, Mo, Ta
J. H. Weaver, C. G. Olson, and D. W. Lynch, Phys. Rev. B 12, 1293 (1975), W
J. H. Weaver, C. G. Olson, M. Piacentini, and D. W. Lynch, Solid State Commun. 16, 163 (1975), Mo thermoreflectance
D. W. Lynch, C. G. Olson, and J. H. Weaver, Phys. Rev. B 11, 3617 (1975), Ti, Zr, and Hf
J. H. Weaver, Phys. Rev. B 11, 1416 (1975), Rh, Pd, Ir, Pt J. H. Weaver and R. L. Benbow, ibid. 12, (1975), Pd
J. H. Weaver and D. W. Lynch, Phys. Rev. B 7, 4737 (1973) J. H. Weaver and C. G. Olson (unpublished), Y
L. Hodges, R. E. Watson, and H. Ehrenreich, Phys. Rev. B 5, 3953 (1972)
R. Rosei and D. W. Lynch, Phys. Rev. B 5, 3883 (1972), Al, Au, and Cu R. Rosei, C. H. Culp, and J. H. Weaver, ibid. 10, 484 (1974), Ag C. G. Olson, M. Piacentini, and D. W. Lynch, Phys. Rev. Lett. 33, 644 (1974), Au W. J. Scouler, ibid. 18, 455 (1967), Au
M. Cardona, Modulation Spectroscopy (Academic, New York, 1969) B. Batz, Semiconductors and Semimetals, edited by R. K. Willardson and A. C. Beer (Academic, New York, 1972) Vol. 9, p. 316
J. Hanus, J. Feinleib, and W. J. Scouler, Phys. Rev. Lett. 19, 16 (1967), Ni D. W. Lynch, R. Rosei, and J. H. Weaver, Solid State Commun. 9, 2195 (1971), Ni.
R. Rosei, Phys. Rev. B 10, 501 (1974)
A. Balzarotti, E. Colavita, S. Gentile, and R. Rosei, Appl. Opt. 14, 2412 (1975)
L. F. Mattheiss, Phys. Rev. B 1, 373 (1970)
L. W. Bos and D. W. Lynch, Phys. Rev. B 2, 4567 (1970) A. S. Barker and J. A. Ditzenberger, ibid. 1, 4378 (1970) D. W. Lynch, R. Rosei, and J. H. Weaver, Phys. Status Solidi A 27, 515 (1975)
J. Rath and J. Callaway, Phys. Rev. B 8, 5398 (1973)
B. N. Harmon (private communication)
D. D. Koelling, F. M. Mueller, and B. W. Veal, Phys. Rev. B 10, 1280 (1974)
W. E. Pickett and P. B. Allen, Phys. Rev. B 11, 3599 (1975)

[c2] J. H. Weaver, D. W. Lynch, and C. G. Olson, Phys. Rev. B 7, 4311 (1973), Nb

[c3] J. H. Weaver, D. W. Lynch, and C. G. Olson, Phys. Rev. B 10, 501 (1974), V, Mo, Ta

[c4] J. H. Weaver, C. G. Olson, and D. W. Lynch, Phys. Rev. B 12, 1293 (1975), W

[c5] J. H. Weaver, C. G. Olson, M. Piacentini, and D. W. Lynch, Solid State Commun. 16, 163 (1975), Mo thermoreflectance

[c6] D. W. Lynch, C. G. Olson, and J. H. Weaver, Phys. Rev. B 11, 3617 (1975), Ti, Zr, and Hf

[c7] J. H. Weaver, Phys. Rev. B 11, 1416 (1975), Rh, Pd, Ir, Pt J. H. Weaver and R. L. Benbow, ibid. 12, (1975), Pd

[c8] J. H. Weaver and D. W. Lynch, Phys. Rev. B 7, 4737 (1973) J. H. Weaver and C. G. Olson (unpublished), Y

[c9] L. Hodges, R. E. Watson, and H. Ehrenreich, Phys. Rev. B 5, 3953 (1972)

[c10] R. Rosei and D. W. Lynch, Phys. Rev. B 5, 3883 (1972), Al, Au, and Cu R. Rosei, C. H. Culp, and J. H. Weaver, ibid. 10, 484 (1974), Ag C. G. Olson, M. Piacentini, and D. W. Lynch, Phys. Rev. Lett. 33, 644 (1974), Au W. J. Scouler, ibid. 18, 455 (1967), Au

[c11] M. Cardona, Modulation Spectroscopy (Academic, New York, 1969) B. Batz, Semiconductors and Semimetals, edited by R. K. Willardson and A. C. Beer (Academic, New York, 1972) Vol. 9, p. 316

[c12] J. Hanus, J. Feinleib, and W. J. Scouler, Phys. Rev. Lett. 19, 16 (1967), Ni D. W. Lynch, R. Rosei, and J. H. Weaver, Solid State Commun. 9, 2195 (1971), Ni.

[c13] R. Rosei, Phys. Rev. B 10, 501 (1974)

[c14] A. Balzarotti, E. Colavita, S. Gentile, and R. Rosei, Appl. Opt. 14, 2412 (1975)

[c15] L. F. Mattheiss, Phys. Rev. B 1, 373 (1970)

[c16] L. W. Bos and D. W. Lynch, Phys. Rev. B 2, 4567 (1970) A. S. Barker and J. A. Ditzenberger, ibid. 1, 4378 (1970) D. W. Lynch, R. Rosei, and J. H. Weaver, Phys. Status Solidi A 27, 515 (1975)

[c17] J. Rath and J. Callaway, Phys. Rev. B 8, 5398 (1973)

[c18] B. N. Harmon (private communication)

[c19] D. D. Koelling, F. M. Mueller, and B. W. Veal, Phys. Rev. B 10, 1280 (1974)

[c20] W. E. Pickett and P. B. Allen, Phys. Rev. B 11, 3599 (1975)

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Thermoreflectance of V, Nb, and paramagnetic Cr

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