OPTICAL STUDY OF THE SEMICONDUCTING BEHAVIOR OF THE C-AXIS CONDUCTIVITY IN REDUCED YBA2CU3OY

被引：13

作者：

TAJIMA, S ^{[1
]}

SCHUTZMANN, J ^{[1
]}

MIYAMOTO, S ^{[1
]}

机构：

[1] TOKAI UNIV,DEPT PHYS,HIRATSUKA,KANAGAWA 25911,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 95卷 / 11期

关键词：

HIGHTC SUPERCONDUCTORS; ELECTRONIC TRANSPORT; OPTICAL PROPERTIES; LIGHT ABSORPTION AND REFLECTION;

D O I：

10.1016/0038-1098(95)00327-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The c-axis optical conductivity spectra were investigated for YBa(2)Cu(3)Oy with y<6.9. By subtracting phonon contributions, it was found that the far-infrared conductivity for the high temperature ''metallic'' regime of rho(c) increases with reducing temperature over a wide frequency range, while, in the low temperature region with ''semiconducting'' rho(c), the conductivity is suppressed below a characteristic frequency which seems to decrease from 700cm(-1) to 500cm(-1) with doping, although an anomalous spectral growth around 400cm(-1) misleads a critical frequency of the suppression for highly reduced crystals.

引用

页码：759 / 764

页数：6

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