Direct Evidence of Spin Transfer Torque on Two-Dimensional Cobalt-Doped MoS2 Ferromagnetic Material,ACS Applied Electronic Materials

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Direct Evidence of Spin Transfer Torque on Two-Dimensional Cobalt-Doped MoS2 Ferromagnetic Material
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2020-06-10 , DOI: 10.1021/acsaelm.0c00384
Meng Huang ₁ , Junxiang Xiang ₁ , Chao Feng ₁ , Haoliang Huang ₂ , Ping Liu ₁ , Yanfei Wu ₃ , Alpha T. N’Diaye ₄ , Gong Chen ₅ , Jinghua Liang ₆ , Hongxin Yang ₆ , Jing Liang ₇ , Xudong Cui ₈ , Jinxing Zhang ₉ , Yalin Lu _{1,

2} , Kaihui Liu ₇ , Dazhi Hou ₁ , Luqiao Liu ₃ , Bin Xiang ₁

Affiliation

Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, China
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley 94720, United States
National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
State Key Laboratory for Mesoscopic Physics, School of Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
Sichuan New Materials Research Center, Institute of Chemical Materials, CAEP, Chengdu, Sichuan 610200, China
Department of Physics, Beijing Normal University, Beijing 100875, China

The manipulation of two-dimensional (2D) ferromagnetic materials by spin current is emerging as the central theme of 2D spintronics research. A paradigm of spintronic devices, the spin Hall magnetoresistance (SMR) device, has been elucidated to obtain direct evidence of spin transfer torque (STT) on a three-dimensional (3D) ferromagnet. Here, we present pioneering results on the SMR effect in a 2D cobalt-doped MoS₂/Ta van der Waals heterostructure, confirming the existence of STT by the magnetic-field angle dependence of the resistance. Our study on the STT of 2D ferromagnetic materials indicates the feasibility of the realization of 2D spintronic devices.

中文翻译：

二维钴掺杂MoS ₂铁磁材料上自旋传递扭矩的直接证据

自旋电流对二维（2D）铁磁材料的操纵正在成为2D自旋电子学研究的中心主题。已经阐明了自旋电子器件的一个范例，即自旋霍尔磁阻（SMR）器件，以获得在三维（3D）铁磁体上自旋传递转矩（STT）的直接证据。在这里，我们提出了关于二维钴掺杂MoS ₂ / Ta van der Waals异质结构中SMR效应的开创性结果，通过电阻的磁场角依赖性证实了STT的存在。我们对2D铁磁材料的STT的研究表明了实现2D自旋电子器件的可行性。

更新日期：2020-06-23

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