Induced spin texture in semiconductor/topological insulator heterostructures

Jimmy A. Hutasoit; Tudor D. Stanescu

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Induced spin texture in semiconductor/topological insulator heterostructures

机译：半导体/拓扑绝缘体异质结构中的自旋织构

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We show that a semiconductor thin film can acquire a nontrivial spin texture due to the proximity effect induced by a topological insulator. The effect stems from coupling to the topological surface states and is present even when the insulator is doped. We propose a semiconductor/topological insulator heterostructure as a device that allows measuring interface properties and probing surface states in uncompensated samples. We also find that the topological insulator surface modes can be significantly broadened and shifted by the presence of metallic contacts.

机译：我们表明，由于拓扑绝缘体引起的邻近效应，半导体薄膜可以获得非平凡的自旋纹理。该效应源于与拓扑表面状态的耦合，即使在掺杂绝缘体时也存在。我们提出一种半导体/拓扑绝缘体异质结构，作为一种可以测量界面特性并探测未补偿样品中表面状态的器件。我们还发现，由于金属触点的存在，拓扑绝缘子的表面模式可以显着拓宽和移动。

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来源
《Physical review》 |2011年第8期|p.085103.1-085103.6|共6页
作者
Jimmy A. Hutasoit; Tudor D. Stanescu;
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作者单位

Department of Physics, West Virginia University, Morgantown, West Virginia 26506, USA;

Department of Physics, West Virginia University, Morgantown, West Virginia 26506, USA;

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正文语种 eng
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关键词
electron states at surfaces and interfaces; proximity effects; Andreev effect; SN and SNS junctions;

机译：表面和界面的电子状态;邻近效应;安德列夫效应;SN和SNS交界处;

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1. Current-Induced Spin Torque on Magnetization Textures Coupled to the Topological Surface States of Three-Dimensional Topological Insulators [J] . Ji Chen, Mansoor Bin Abdul Jalil, Seng Ghee Tan Journal of the Physical Society of Japan . 2014,第6期

机译：磁化纹理上的电流感应自旋转矩与三维拓扑绝缘子的拓扑表面状态耦合
2. Giant unidirectional spin Hall magnetoresistance in topological insulator - ferromagnetic semiconductor heterostructures [J] . Nguyen Huynh Duy Khang, Pham Nam Hai Journal of Applied Physics . 2019,第23期

机译：拓扑绝缘子 - 铁磁半导体异质结构的巨型单向旋转霍尔磁阻
3. Interface symmetry and spin control in topological-insulator-semiconductor heterostructures [J] . Mahmoud M. Asmar, Daniel E. Sheehy, Ilya Vekhter Physical review. B, Condensed Matter And Materals Physics . 2017,第24期

机译：拓扑-绝缘体-半导体异质结构中的界面对称性和自旋控制
4. Electrical spin injection in 2D semiconductors and topological insulators [C] . L. E. Golub, E. L. Ivchenko ICPS 2012 . 2013

机译：2D半导体和拓扑绝缘体中的电动旋转注射
5. Magnetotransport Methods to Probe Surface States of Topological Insulator Thin Films and Topological Insulator/Ferromagnet (TI/FM) Heterostructures. [D] . Kumar, Raj. 2015

机译：探测拓扑绝缘体薄膜和拓扑绝缘体/铁磁体（TI / FM）异质结构表面状态的磁传输方法。
6. Scattering symmetry-breaking induced spin photocurrent from out-of-plane spin texture in a 3D topological insulator [O] . Y. Q. Huang, I. A. Buyanova, W. M. Chen -1

机译：3D拓扑绝缘体中面外自旋纹理散射对称破坏引起的自旋光电流
7. Induced spin texture in semiconductor/topological insulator heterostructures [O] . Hutasoit, Jimmy A., Stanescu, Tudor D. 2011

机译：半导体/拓扑绝缘体中的自旋纹理异质

Induced spin texture in semiconductor/topological insulator heterostructures

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