CRITICAL FLUCTUATIONS IN THE MAGNETIZATION OF BI2SR2CACU2O8 NEAR THE H(C2)(T) LINE

被引：59

作者：

LI, Q ^{[1
]}

SHIBUTANI, K ^{[1
]}

SUENAGA, M ^{[1
]}

SHIGAKI, I ^{[1
]}

OGAWA, R ^{[1
]}

机构：

[1] KOBE STEEL LTD,CTR SUPERCOND & CRYOGEN TECHNOL,NISHI KU,KOBE 65122,JAPAN

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.48.9877

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetization measurements on Bi2Sr2CaCu2O8 single crystals with H parallel to the c axis are presented to show that the critical fluctuations in the magnetization near the H(c2)(T) line can be well studied within the two-dimensional nonperturbative scaling theory developed by Tesanovic et al. By using this scaling theory and basic thermodynamic arguments, we obtained the Ginzburg-Landau parameter kappa (congruent-to 115) and dH(c2)/dT (congruent-to -2.7 T/K) near T(c) for this material. In addition, we found that these derived parameters are in good agreement with those determined from the study of reversible magnetization in an intermediate field at low temperature.

引用

页码：9877 / 9880

页数：4

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