2-DIMENSIONAL FLUCTUATIONS IN THE MAGNETIZATION OF BI2SR2CA2CU3O10

被引：94

作者：

LI, Q ^{[1
]}

SUENAGA, M ^{[1
]}

HIKATA, T ^{[1
]}

SATO, K ^{[1
]}

机构：

[1] SUMITOMO ELECT IND LTD,OSAKA RES LABS,KONOHANA KU,OSAKA 554,JAPAN

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.46.5857

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetization measurements on c-axis-oriented bulk Bi2Sr2Ca2Cu3O10 with the magnetic field parallel to the c axis are reported. The results show large fluctuation effects, which can be explained by Ginzburg-Landau fluctuation theory for a two-dimensional (2D) system. The magnetization in high fields displays good scaling behavior as a function of [T - T(c)(H)]/(TH)1/2. The weak-field fluctuation diamagnetic susceptibility-chi(T) above T(c) can be fitted well in terms of the 2D Lawrence-Doniach model. Values of xi(ab)(0) and dH(c2)/dT derived from our fluctuation analysis are consistent with those obtained by fitting the Hao-Clem variational model to the reversible magnetization data below T(c).

引用

页码：5857 / 5860

页数：4

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