FAR-INFRARED AND MICROWAVE INTRAGAP ABSORPTION IN A YBA2CU3O7-DELTA THIN-FILM AT LOW-TEMPERATURE

被引：39
作者：
RENK, KF
GORSHUNOV, B
SCHUTZMANN, J
PRUCKL, A
BRUNNER, B
BETZ, J
ORBACH, S
KLEIN, N
MULLER, G
PIEL, H
机构：
[1] UNIV GESAMTHSCH WUPPERTAL,FACHBEREICH PHYS,W-5600 WUPPERTAL 1,GERMANY
[2] ACAD SCI USSR,INST GEN PHYS,MOSCOW V-71,USSR
来源：
EUROPHYSICS LETTERS | 1991年 / 15卷 / 06期
关键词：
PEROVSKITE PHASE SUPERCONDUCTORS; SUPERCONDUCTING FILMS; OPTICAL PROPERTIES OF THIN FILMS (INC SUPERLATTICES; HETEROSTRUCTURES; AND INTERCALATION COMPOUNDS);
D O I：
10.1209/0295-5075/15/6/017
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on a study of far-infrared and microwave intragap absorption of a YBa2Cu3O7-delta thin film at low temperature. Our results suggest a superconducting energy gap with 2-DELTA(0)/k(B)T(c) almost-equal-to 7 and residual, intragap absorption for temperatures T << T(c) that consists of three portions, a microwave and a far-infrared band of possibly nonintrinsic nature and sharp phonon resonances of intrinsic nature.
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页码：661 / 666
页数：6
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