FLUCTUATION EFFECTS IN SPECIFIC-HEAT AND MAGNETIZATION OF C-AXIS ALIGNED (BI,PB)(2)SR2CA2CU3OX

被引：19

作者：

KOBAYASHI, N ^{[1
]}

EGAWA, K ^{[1
]}

MIYOSHI, K ^{[1
]}

IWASAKI, H ^{[1
]}

IKEDA, H ^{[1
]}

YOSHIZAKI, R ^{[1
]}

机构：

[1] UNIV TSUKUBA,INST APPL PHYS,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICA C | 1994年 / 219卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(94)90378-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The specific heat and magnetization of a c-axis aligned (Bi,Pb)(2)Sr2Ca2Cu3Ox bulk sample have been measured in magnetic fields up to 50 kOe. The normalized electronic specific heat Delta C/Delta C-MF,where Delta C-MF is a mean-field specific-heat jump, as well as the magnetization M(T,H)/(TH)(1/2) can be cast into a universal curve with variable [T-T-c(H)]/(TH)(1/2), where T-c(H) is the mean-field transition temperature. This means that the influence of the superconducting fluctuations on the thermodynamic properties of the Bi2Sr2Ca2Cu3O(x) system is described by two-dimensional scaling functions. The scaling behaviors are discussed on the basis of the Ginzburg-Landau fluctuation theory for a quasi-two-dimensional system.

引用

页码：265 / 272

页数：8

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