Magnetic-field-induced phase transitions between helical structures in noncentrosymmetric uniaxial antiferromagnets

被引：7

作者：

Bogdanov, AN ^{[1
]}

Shestakov, AA ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, A Galkin Physicotech Inst, UA-340114 Donetsk, Ukraine

来源：

LOW TEMPERATURE PHYSICS | 1999年 / 25卷 / 01期

关键词：

D O I：

10.1063/1.593695

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two symmetrically different types of one-dimensional modulated structures (cycloids and conical helicoids) can exist in noncentrosymmetric uniaxial antiferromagnets. An applied magnetic field induces a first-order phase transition between these phases. The equilibrium parameters of the modulated structures are determined from the solution of the corresponding differential equations, and the phase diagram of the antiferromagnet in a bias magnetic field is calculated numerically. An analysis of experimental results leads to the conclusion that the predicted phase transition occurs in Ba2CuGe2O7. (C) 1999 American Institute of Physics. [S1063-777X(99)01501-7].

引用

页码：76 / 78

页数：3

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PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4857-4860

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