Inversion-symmetry breaking in the noncollinear magnetic phase of the triangular-lattice antiferromagnet CuFeO2

被引：453

作者：

Kimura, T. ^{[1
]}

Lashley, J. C.

Ramirez, A. P.

机构：

[1] Los Alamos Natl Labs, Los Alamos, NM 87545 USA

[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.73.220401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetoelectric and magnetoelastic phenomena have been investigated on a frustrated triangular antiferromagnetic lattice in CuFeO2. Inversion-symmetry breaking, manifested as a finite electric polarization, was observed in noncollinear (helical) magnetic phases and not in collinear magnetic phases. This result demonstrates that the noncollinear spin structure plays an important role in inducing electric polarization. Based on these results we suggest that frustrated magnets (often favoring noncollinear configurations) are favorable candidates for a new class of magnetoelectric materials.

引用

页数：4

共 27 条

[1] HIGH-FIELD MAGNETIZATION PROCESS IN THE TRIANGULAR LATTICE ANTIFERROMAGNET CUFEO2 UP TO 100-T [J].