LOGARITHMIC CORRECTIONS IN THE MAGNETIC EQUATION OF STATE FOR LITBF4

被引：33

作者：

FROWEIN, R ^{[1
]}

KOTZLER, J ^{[1
]}

ASSMUS, W ^{[1
]}

机构：

[1] UNIV FRANKFURT,INST PHYS,D-6000 FRANKFURT,FED REP GER

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.42.739

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using SQUID (superconducting quantum interference device) detection, the field and temperature dependence of the magnetization m has been measured close to the critical point of this uniaxial dipolar-coupled ferromagnet. It is shown for the first time that the Landau expansion of the field h holds if m is scaled by [lnχ0]13, while other equations (of Ising, mean field) yield less agreement and unrealistic parameters. The expansion coefficients of the present analysis can explain in detail formerly measured zero-field properties. © 1979 The American Physical Society.

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页码：739 / 742

页数：4

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