Method And Apparatus For Evaluatin Of High Temperature Superconductors

Fishman, Ilya M; Kino, Gordon S

Title: Method And Apparatus For Evaluatin Of High Temperature Superconductors

Patent · Tue Nov 12 00:00:00 EST 1996

OSTI ID:879246

Fishman, Ilya M ^[1]; Kino, Gordon S ^[2]

Palo Alto, CA
Stanford, CA

A technique for evaluation of high-T.sub.c superconducting films and single crystals is based on measurement of temperature dependence of differential optical reflectivity of high-T.sub.c materials. In the claimed method, specific parameters of the superconducting transition such as the critical temperature, anisotropy of the differential optical reflectivity response, and the part of the optical losses related to sample quality are measured. The apparatus for performing this technique includes pump and probe sources, cooling means for sweeping sample temperature across the critical temperature and polarization controller for controlling a state of polarization of a probe light beam.

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Research Organization:: Stanford Univ., CA (United States)

DOE Contract Number:: FG03-90ER14157

Assignee:: The Board of Trustees of the Leland Stanford Junior University (Stanford, CA)

Patent Number(s):: US 5574562

Application Number:: 08/359283

OSTI ID:: 879246

Country of Publication:: United States

Language:: English

References (4)

Comment on ‘‘Thermal transport in a charged Bose gas and in high- $T_{c}$ oxides’’ Fishman, I. M.; Kino, G. S. Physical Review Letters, Vol. 72, Issue 4 https://doi.org/10.1103/PhysRevLett.72.588	journal	January 1994
Density of normal carriers below $T_{c}$ and thermal resistance of twin boundaries in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - x}$ single crystals Fishman, I. M.; Kino, G. S.; Wu, X. D. Physical Review B, Vol. 50, Issue 10 https://doi.org/10.1103/PhysRevB.50.7192	journal	September 1994
Precision measurements of the temperature dependence of λ in ${YBa}_{2}$ ${Cu}_{3}$ $O_{6.95}$ : Strong evidence for nodes in the gap function Hardy, W. N.; Bonn, D. A.; Morgan, D. C. Physical Review Letters, Vol. 70, Issue 25 https://doi.org/10.1103/PhysRevLett.70.3999	journal	June 1993
Optical studies of the a -, b -, and c -axis charge dynamics in ${YBa}_{2}$ ${Cu}_{3}$ $O_{6 + x}$ Cooper, S. L.; Reznik, D.; Kotz, A. Physical Review B, Vol. 47, Issue 13 https://doi.org/10.1103/PhysRevB.47.8233	journal	April 1993

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