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Spin transport in Zigzag normal/ferromagnetic graphene junction |
| Shi Hao-Sheng, Vahram L. Grigoryan |
| Department of Physics and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China |
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Abstract We study magnetic proximity effect induced low-energy spin transport in normal/ferromagnetic junction of semi-infinite zigzag graphene nanoribbon. Due to the absence of spin flip in single interface, the spin transfer in this model can be described by the “two-spin channel” model. We identify each spin channel as either perfect conducting or non-conducting channel. This feature leads to spin filter in symmetric zigzag graphene nanoribbon and spin precession in antisymmetric zigzag graphene nanoribbon, and helps to determine exchange-splitting intensity directly, even without an external auxiliary bias.
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Received: 16 July 2014
Published: 05 March 2015
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PACS:
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72.25.Mk
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(Spin transport through interfaces)
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Corresponding Authors:
Shi Hao-Sheng
E-mail: 11210190010@fudan.edu.cn
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Cite this article:
Shi Hao-Sheng, Vahram L. Grigoryan Spin transport in Zigzag normal/ferromagnetic graphene junction 0 Chin. Phys. B 38504
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