Dzyaloshinsky-Moriya-induced order in the spin-liquid phase of the S=1/2 pyrochlore antiferromagnet -: art. no. 014421

被引：15

作者：

Kotov, VN ^{[1
]}

Elhajal, M

Zhitomirsky, ME

Mila, F

机构：

[1] Swiss Fed Inst Technol, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

[2] Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany

[3] SPSMS, DFRMC, DSM, Commissariat & Energie Atom, F-38054 Grenoble, France

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.014421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that the S=1/2 pyrochlore lattice with both Heisenberg and antisymmetric Dzyaloshinsky-Moriya (DM) interactions can order antiferromagnetically into a state with chiral symmetry, dictated by the distribution of the DM interactions. The chiral antiferromagnetic state is characterized by a small staggered magnetic moment induced by the DM interaction. An external magnetic field can also lead to characteristic field-induced ordering patterns, strongly dependent on the field direction, and generally separated by a quantum phase transition from the chiral ordered phase. The phase diagram at finite temperature is also discussed.

引用

页数：7

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