Dynamic properties of a high-Tc superconductor: Direct evidence for non-BCS behavior

R. T. Collins; Z. Schlesinger; F. Holtzberg; C. Feild; U. Welp; G. W. Crabtree; J. Z. Liu; Y. Fang

doi:10.1103/PhysRevB.43.8701

← Back to search

Dynamic properties of a high-Tc superconductor: Direct evidence for non-BCS behavior

R. T. Collins, Z. Schlesinger, F. Holtzberg, C. Feild, U. Welp, G. W. Crabtree, J. Z. Liu, Y. Fang

DOI 10.1103/PhysRevB.43.8701 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

Measurements of the temperature dependence of the infrared conductivity of the CuO2 planes in YBa2Cu3O7 in the superconducting state are reported. Remarkably, we find that the temperature dependence of σ1(ω,T) is independent of ω for ω≲500 cm−1, and that it is the same as that of the nuclear Korringa product, 1/T1T. These observations indicate that for the best-characterized high-temperature superconductor, YBa2Cu3O7, the phenomenology of dynamic properties is fundamentally different from that of conventional superconductors.

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.	93	Pressure not reported	unknown