| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Spin Caloritronic Transport of Tree-Saw Graphene Nanoribbons |
| Yu-Zhuo LV, Peng ZHAO** |
School of Physics and Technology, University of Jinan, Jinan 250022
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| Cite this article: |
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Yu-Zhuo LV, Peng ZHAO 2019 Chin. Phys. Lett. 36 017301 |
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Abstract Using density functional theory combined with non-equilibrium Green's function method, we investigate the spin caloritronic transport properties of tree-saw graphene nanoribbons. These systems have stable ferromagnetic ground states with a high Curie temperature that is far above room temperature and exhibit obvious spin-Seebeck effect. Moreover, thermal colossal magnetoresistance up to 10$^{20}$% can be achieved by the external magnetic field modulation. The underlying mechanism is analyzed by spin-resolved transmission spectra, current spectra and band structures.
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Received: 13 August 2018
Published: 25 December 2018
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| PACS: |
73.23.-b
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(Electronic transport in mesoscopic systems)
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85.65.+h
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(Molecular electronic devices)
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71.15.Mb
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(Density functional theory, local density approximation, gradient and other corrections)
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| Fund: Supported by the Natural Science Foundation of Shandong Province under Grant No ZR2016AM11. |
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