2-STEP TRANSITIONS IN NONCOLLINEAR MAGNETS

被引：16

作者：

CHUBUKOV, AV ^{[1
]}

机构：

[1] PL KAPITZA PHYS PROBLEMS INST,MOSCOW 117334,USSR

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.44.5362

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A possibility for a two-step transition in noncollinear (twisted) magnets is studied by means of a renormalization-group (RG) technique near two dimensions. The microscopically derived RG equations allow a single transition governed by O(4) exponents but also two-step transitions with preliminary SO(2) or S2 ordering, depending on the microscopical Hamiltonian. A possible experimental signature of partial ordering is discussed.

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页码：5362 / 5365

页数：4

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