DYNAMICAL CONDUCTIVITY OF HIGH-TC SUPERCONDUCTORS

被引：21

作者：

RENK, KF

ESCHRIG, H

HOFMANN, U

KELLER, J

SCHUTZMANN, J

OSE, W

机构：

[1] Fakultät für Physik, Universität Regensburg

来源：

PHYSICA C | 1990年 / 165卷 / 01期

关键词：

D O I：

10.1016/0921-4534(90)90423-C

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present an analysis of the far- and mid-infrared conductivity of YBa2Cu3O7-y. We suppose that two types of low-lying electronic excitations in high-Tc superconductors are present, namely mobile quasi holes in the CuO2 planes and almost localized doping electron states in the CuO3 chains. We explain the far-infrared conductivity at low temperature (T ≪ Tc) with a two-band model derived from the two-layer structure of YBa2Cu3O7-y. This model leads to two gap values, well above and below the BCS value. © 1990.

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页码：1 / 7

页数：7

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