Far-infrared optical conductivity of Nb thin films

被引：0
作者：
Shibata, H
Kimura, S
Kashiwaya, S
Kohjiro, S
Oka, K
Mitsugi, Y
Tanaka, Y
机构：
[1] NatlInst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan
[2] Nagoya Univ, Chikusa Ku, Nagoya, Aichi 4648601, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
niobium; optical properties; far-infrared spectra;
D O I：
10.1016/S0921-4526(02)02243-3
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Optical reflectance and transmittance spectra of Nb thin films deposited on Si substrates have been measured in the far-infrared region at temperatures above and below T-c. The results have been analyzed by using the R-T method (Jpn. J. Appl. Phys. 40 (2001) 3163) to determine the temperature dependence of the optical conductivity spectra sigma(1)(omega). The results suggest that the size of the superconducting energy gap at 4.5 K is similar to 10 cm(-1). (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1369 / 1370
页数：2
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