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Effects of a ferromagnetic metal stripe and a Schottky metal stripe on the electron transport in a nanostructure |
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| Authors: | Jian-Duo Lu Bin XuWei Zheng |
| Affiliation: | a Hubei Province Key Laboratory of Systems Science in Metallurgical Process, Wuhan University of Science and Technology, Wuhan 430081, China b Department of Mathematics and Information Sciences, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011, China c Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China |
| Abstract: | In this paper, the spin-dependent electron transport in a two-dimensional electron gas (2DEG) modulated by a ferromagnetic (FM) metal stripe and a Schottky metal (SM) stripe is in detail studied. It is found that the position and the width of the SM stripe as well as the incident energy of electron play an important role on the spin polarization. It is also found that the spin polarization is obviously dependent on the electric-barrier height induced by an applied voltage to the SM stripe and such a device can be used as a voltage-tunable electron-spin filter. |
| Keywords: | Magnetic nanostructure Schottky metal stripe Spin polarization |
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