Localization effects and pseudogap state in YBa2Cu3O7-δ single crystals with different oxygen content

被引：42

作者：

Obolenskii, M. A. ^{[1
]}

Vovk, R. V. ^{[1
]}

Bondarenko, A. V. ^{[1
]}

Chebotaev, N. N. ^{[1
]}

机构：

[1] Kharkov Natl Univ, UA-61077 Kharkov, Ukraine

来源：

LOW TEMPERATURE PHYSICS | 2006年 / 32卷 / 06期

关键词：

D O I：

10.1063/1.2215373

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the evolution of the temperature dependence of the in-plane and off-plane conductivity of YBa2Cu3O7-delta single crystals due to the decrease of the oxygen content in the samples caused by a heat treatment. The concentration dependence of the in-plane and off-plane energy gaps has been determined. It has been shown that the enhancement of the localization effects results in a suppression of the pseudogap state. At the same time, the decrease of the oxygen content results in a relative narrowing of the temperature interval in which the regime of fluctuation conductivity is realized.

引用

页码：571 / 575

页数：5

共 15 条

[1]

ALEKSANDROV IV, 1988, JETP LETT+, V47, P428

[2]

Aslamazov L.G., 1968, FIZ TVERD TELA, V10, P1104

[3] NONLOCAL EFFECT IN MAGNETOCONDUCTIVITY OF HIGH-TC SUPERCONDUCTORS [J].