MAGNETIC LOW-TEMPERATURE SPECIFIC-HEAT OF YBA2CU3O7-DELTA DUE TO LOCALIZED CHARGE-CARRIERS

被引：14

作者：

SCHREINER, T ^{[1
]}

AHRENS, R ^{[1
]}

WOLF, T ^{[1
]}

SCHMIDT, H ^{[1
]}

RIETSCHEL, H ^{[1
]}

机构：

[1] INST TECH PHYS, W-7500 KARLSHRUHE, GERMANY

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1992年 / 204卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90586-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The specific heat of an YBa2Cu3O7-delta single crystal has been measured in the temperature range from 38 mK to 40 K in different magnetic fields. A significant specific heat contribution remains after subtracting lattice and nuclear terms. This additional contribution could be observed between 38 mK and 15 K and has been investigated in detail. Similarilties to other substances, especially Si:P, are pointed out. Charge carriers localized by disorder and correlation effects are suggested as a possible cause of this contribution.

引用

页码：161 / 170

页数：10

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