期刊
JOURNAL OF APPLIED PHYSICS
卷 124, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5052529
关键词
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资金
- Natural Science Foundation of China [11764018]
- Special Foundation for Theoretical Physics Research Program of China [11747004]
- China Scholarship Council [201808360072]
- Scientific Research Fund of Jiangxi Provincial Education Department [GJJ160661, GJJ170569]
- Program of Qingjiang Excellent Young Talents, Jiangxi University of Science and Technology
The spin transport properties of molecular devices constructed from zigzag gallium nitride nanoribbons (ZGaNNRs) are investigated by applying the non-equilibrium Green's function formalism in combination with density functional theory. The computational results indicate that ZGaNNR systems show spin rectification with a high efficiency, approaching nearly 109, giant magnetoresistance with a ratio up to 108, perfect spin-filtering, and negative differential resistance effects. Importantly, our results reveal that intrinsic rectification can be observed regardless of their width. The microscopic origins of the rectification are revealed and discussed in terms of a spin-resolved transmission spectrum, the band structures of the ZGaNNRs, and the molecular projected self-consistent Hamiltonian. Our findings could be useful for designing GaN-based spintronic nanodevices. Published by AIP Publishing.
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