Far-infrared magnetoconductivity of a high-Tc superconducting film
J. E. Eldridge, M. Dressel, D. J. Matz, B. Gross, Q. Y. Ma, W. N. Hardy
DOI 10.1103/PhysRevB.52.4462 · Physical Review B
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Abstract
Measurements of the far-infrared reflectivity R of a superconducting YBa2Cu3O7 thin film exhibit a strong dependence on magnetic field B. The ratios of R(B)/R(0) were used, in conjunction with a separate measurement of R(0), to obtain the absolute values of R(B). A Kramers-Kronig analysis then gave the field-dependent conductivity which shows a broad resonance between 50 and 250 cm−1. A theory involving vortex motion with pinning was able to fit the shape of the field-dependent conductivity resonance but not the magnitude.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
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