Spirals and Skyrmions in Two Dimensional Oxide Heterostructures

被引：44

作者：

Li, Xiaopeng ^{[1
,2
]}

Liu, W. Vincent ^{[1
,3
]}

Balents, Leon ^{[2
]}

机构：

[1] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[2] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA

[3] Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 06期

基金：

美国国家科学基金会; 美国安德鲁·梅隆基金会;

关键词：

MAGNETIC ORDER; LAALO3/SRTIO3; SUPERCONDUCTIVITY; FERROMAGNETISM; COEXISTENCE; INTERFACE; ELECTRONS; LATTICE; STATES; PHASE;

D O I：

10.1103/PhysRevLett.112.067202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We construct the general free energy governing long-wavelength magnetism in two dimensional oxide heterostructures, which applies irrespective of the microscopic mechanism for magnetism. This leads, in the relevant regime of weak but non-negligible spin-orbit coupling, to a rich phase diagram containing in-plane ferromagnetic, spiral, cone, and Skyrmion lattice phases, as well as a nematic state stabilized by thermal fluctuations.

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