INFRARED OBSERVATION OF 2-FLUID SUPERCONDUCTIVITY IN YBA2CU3O7-X

被引：56

作者：

VANDERMAREL, D ^{[1
]}

BAUER, M ^{[1
]}

BRANDT, EH ^{[1
]}

HABERMEIER, HU ^{[1
]}

HEITMANN, D ^{[1
]}

KONIG, W ^{[1
]}

WITTLIN, A ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.43.8606

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We observe critical behavior near T(c) in the infrared reflectivity of c-axis-oriented Y1Ba2Cu3O7-x films prepared with pulsed in situ laser deposition. From comparison with theoretical spectra we show that the observed behavior is in excellent agreement with a phenomenological two-fluid model and in strong disagreement with standard BCS theory. We demonstrate that the superconducting charge carrier density is the relevant order parameter with a temperature-independent in-plane gap parameter.

引用

页码：8606 / 8609

页数：4

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