Quantum Anomalous Hall State in Ferromagnetic SrRuO3 (111) Bilayers

doi:10.1103/PhysRevLett.119.026402

	Quantum Anomalous Hall State in Ferromagnetic SrRuO3 (111) Bilayers
	Si, Liang 1; Janson, Oleg 1; Li, Gang1,2 ; Zhong, Zhicheng 3; Liao, Zhaoliang 4; Koster, Gertjan 4; Held, Karsten 1
	2017-07-13
发表期刊	PHYSICAL REVIEW LETTERS (IF:8.1[JCR-2023],8.3[5-Year])
ISSN	0031-9007
卷号	119 期号:2
发表状态	已发表
DOI	10.1103/PhysRevLett.119.026402
摘要	SrRuO3 heterostructures grown in the (111) direction are a rare example of thin film ferromagnets. By means of density functional theory plus dynamical mean field theory we show that the half-metallic ferromagnetic state with an ordered magnetic moment of 2 mu(B)/Ru survives the ultimate dimensional confinement down to a bilayer, even at elevated temperatures of 500 K. In the minority channel, the spin-orbit coupling opens a gap at the linear band crossing corresponding to 3/4 filling of the t(2g) shell. We predict that the emergent phase is Haldane's quantum anomalous Hall state with Chern number C = 1, without an external magnetic field or magnetic impurities.
收录类别	SCI ; EI
语种	英语
资助项目	European Union Council through the Seventh Framework Program (FP7)[NMP3-LA-2010-246102 IFOX]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000405367800010
出版者	AMER PHYSICAL SOC
EI入藏号	20173003980107
EI主题词	Density functional theory ; Ferromagnetic materials ; Ferromagnetism ; Impurities ; Magnetic moments ; Magnetism ; Mean field theory
EI分类号	Magnetism: Basic Concepts and Phenomena:701.2 ; Magnetic Materials:708.4 ; Mathematical Statistics:922.2 ; Quantum Theory; Quantum Mechanics:931.4 ; Materials Science:951
WOS关键词	LOCALIZED WANNIER FUNCTIONS ; TOPOLOGICAL INSULATORS ; OXIDE HETEROSTRUCTURES ; THIN-FILMS ; PHASE ; INTERFACES ; DYNAMICS ; METALS
原始文献类型	Article
通讯作者	Li, Gang
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2826
专题	物质科学与技术学院_PI研究组_李刚组
通讯作者	Li, Gang
作者单位	1.TU Wien, Inst Festkorperphys, Wiedner Hauptstr 8-10, A-1040 Vienna, Austria 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 3.Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany 4.Univ Twente, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Si, Liang,Janson, Oleg,Li, Gang,et al. Quantum Anomalous Hall State in Ferromagnetic SrRuO3 (111) Bilayers[J]. PHYSICAL REVIEW LETTERS,2017,119(2).
APA	Si, Liang.,Janson, Oleg.,Li, Gang.,Zhong, Zhicheng.,Liao, Zhaoliang.,...&Held, Karsten.(2017).Quantum Anomalous Hall State in Ferromagnetic SrRuO3 (111) Bilayers.PHYSICAL REVIEW LETTERS,119(2).
MLA	Si, Liang,et al."Quantum Anomalous Hall State in Ferromagnetic SrRuO3 (111) Bilayers".PHYSICAL REVIEW LETTERS 119.2(2017).