RENORMALIZED FIELD-THEORY FOR THE STATIC CROSSOVER IN UNIAXIAL DIPOLAR FERROMAGNETS

被引：50

作者：

FREY, E ^{[1
]}

SCHWABL, F ^{[1
]}

机构：

[1] TECH UNIV MUNICH,INST THEORET PHYS,DEPT PHYS,W-8046 GARCHING,GERMANY

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.42.8261

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a field-theoretic description of the crossover in the critical statics of uniaxial dipolar ferromagnets. Within a generalized minimal subtraction scheme we are able to describe the crossover from Ising behavior with nonclassical exponents to asymptotic uniaxial dipolar behavior, which is characterized by classical exponents with logarithmic corrections. The results are discussed in terms of flow diagrams and effective exponents and are compared with experiments on LiTbF4. © 1990 The American Physical Society.

引用

页码：8261 / 8273

页数：13

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