Structure and strain tunings of topological anomalous Hall effect in cubic noncollinear antiferromagnet Mn3Pt epitaxial films

作     者：Ning An Meng Tang Shuai Hu HuangLin Yang WeiJia Fan ShiMing Zhou XuePeng Qiu Ning An;Meng Tang;Shuai Hu;HuangLin Yang;WeiJia Fan;ShiMing Zhou;XuePeng Qiu

作者机构：Shanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai 200092China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2020年第63卷第9期

页      面：105-110页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：the National Key R&D Program of China(Grant Nos.2017YFA0303202,and 2017YFA0305300) the National Natural Science Foundation of China(Grant Nos.11974260,11674246,51501131,51671147,11874283,51801152,and 11774064) the Natural Science Foundation of Shanghai(Grant Nos.17ZR1443700,and19ZR1478700) the Fundamental Research Funds for the Central Universities 

主　　题：anomalous Hall effect noncollinear antiferromagnet strain effect L10 and L12 alloys 

摘      要：Antiferromagnets(AFMs)with chiral noncollinear spin structure have attracted great attention in recent ***,the existing research has mainly focused on hexagonal chiral AFMs,such as Mn3Sn,Mn3Ga,Mn3Ge with low crystalline ***,we present our systematical study for the face-centered cubic noncollinear antiferromagnetic *** varying the alloy composition(x),we have successfully fabricated antiferromagnetic Mn1-xPtx epitaxial films on MgO substrates and have observed a crystalline structure transition from L10 MnPt to L12 *** Mn3Pt exhibits a large anomalous Hall effect,which is in the same order of magnitude as those of ferromagnetic ***,a large thickness-evolved strain effect is revealed in Mn3Pt films by X-ray diffraction(XRD)analysis based on the Scherrer *** work explores Mn3Pt as a promising candidate for topological antiferromagnetic spintronics.