Versatile helimagnetic phases under magnetic fields in cubic perovskite SrFeO3

被引：132

作者：

Ishiwata, S. ^{[1
,2
,3
]}

Tokunaga, M. ^{[4
]}

Kaneko, Y. ^{[5
]}

Okuyama, D. ^{[2
,3
]}

Tokunaga, Y. ^{[2
,3
,5
]}

Wakimoto, S. ^{[6
]}

Kakurai, K. ^{[6
]}

Arima, T. ^{[7
]}

Taguchi, Y. ^{[2
,3
]}

Tokura, Y. ^{[1
,2
,3
,5
]}

机构：

[1] Univ Tokyo, QPEC, Dept Appl Phys, Tokyo 1138656, Japan

[2] RIKEN ASI, Cross Correlated Mat Res Grp CMRG, Wako, Saitama 3510198, Japan

[3] RIKEN ASI, CERG, Wako, Saitama 3510198, Japan

[4] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[5] RIKEN, ERATO, Multiferro Project, Wako, Saitama 3510198, Japan

[6] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Tokai, Ibaraki 3191195, Japan

[7] Univ Tokyo, Dept Adv Mat Sci, Kashiwa, Chiba 2778561, Japan

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 05期

关键词：

WEAK FERROMAGNETISM; CRYSTAL; REAL;

D O I：

10.1103/PhysRevB.84.054427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A helical spin texture is of great current interest for a host of novel spin-dependent transport phenomena. We report a rich variety of nontrivial helimagnetic phases in the simple cubic perovskite SrFeO3 under magnetic fields up to 42 T. Magnetic and resistivity measurements revealed that the proper-screw spin phase proposed for SrFeO3 can be subdivided into at least five kinds of ordered phases. Near the multicritical point, an unconventional anomalous Hall effect was found to show up and was interpreted as due to a possible long-period noncoplanar spin texture with scalar spin chirality.

引用

页数：5

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