INFRARED REFLECTIVITY OF BI-SR-CA-CU-O HIGH-TC SUPERCONDUCTORS

被引：13

作者：

CALVANI, P ^{[1
]}

CAPIZZI, M ^{[1
]}

LUPI, S ^{[1
]}

MASELLI, P ^{[1
]}

PESCHIAROLI, D ^{[1
]}

KATAYAMAYOSHIDA, H ^{[1
]}

机构：

[1] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 74卷 / 12期

关键词：

D O I：

10.1016/0038-1098(90)91002-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The reflectance of Bi2Sr2CanCun+1O2n+6 superconducting films with n = 1 and n = 2 has been measured at 300 and 25 K from 400 to 20000 cm-1. The superconductor conductivity ∼σ(ω) has been singled out from the total reflectance by subtraction of the substrate contribution. ∼σ(ω) is given by the sum of a Drude term plus a T-independent term from overdamped oscillators. A clear dependence of the Bi2Sr2CanCun+1O2n+6 infrared optical functions on Tc has been first established. Possible interpretations in terms of existing theoretical models are suggested. © 1990.

引用

页码：1333 / 1337

页数：5

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