Gap in the infrared response of HgBa2Ca2Cu3O8+δ

被引：32
|
作者：
McGuire, JJ
Windt, M
Startseva, T
Timusk, T
Colson, D
Viallet-Guillen, V [1 ]
机构：
[1] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
[2] CEA Saclay, DRECAM, SPEC, F-91191 Gif Sur Yvette, France
来源：
PHYSICAL REVIEW B | 2000年 / 62卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.62.8711
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ab-plane optical spectra of one underdoped and one nearly optimally doped single crystal of HgBa2Ca2Cu3O8+delta were investigated in the frequency range from 40 to 40 000 cm(-1). The frequency-dependent scattering rate was obtained by Kramers Kronig analysis of the reflectance. Both crystals have a gap in the scattering rate of about 1000 cm(-1) which is much larger than the 700-cm(-1) gap seen in optical studies of several cuprates with maximum T-c around 93 K. There appears to be a universal scaling between gap size and maximum T-c for the cuprate superconductors.
引用
收藏
页码：8711 / 8714
页数：4
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