FAR-INFRARED TRANSMISSION STUDY OF SINGLE-CRYSTAL BI2SR2CA1CU2OX SUPERCONDUCTORS

被引：65
作者：
FORRO, L
CARR, GL
WILLIAMS, GP
MANDRUS, D
MIHALY, L
机构：
[1] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611
[2] BROOKHAVEN NATL LAB,NATL SYNCHROTRON LIGHT SOURCE,UPTON,NY 11973
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.65.1941
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the infrared transmission of free-standing single crystals of the high-temperature superconductor Bi2Sr2Ca1Cu2Ox, at temperatures between 25 and 300 K and at frequencies covering the range of 1.5kBTc Latin small letter h with stroke<12kBTc. The normal-state Drude relaxation rate follows a linear temperature dependence Latin small letter h with stroke/=3kBT. In the superconducting state there is no indication of a transmission peak, which characterizes a superconducting gap in the optical conductivity. We suggest that a strong pair-breaking interaction is responsible for this null result. © 1990 The American Physical Society.
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页码：1941 / 1944
页数：4
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