Phonon-Assisted Spin Current in Single Molecular Magnet Junctions

doi:10.1088/0256-307X/32/11/117201

Chin. Phys. Lett.

2015, Vol. 32

Issue (11): 117201 DOI: 10.1088/0256-307X/32/11/117201

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

Phonon-Assisted Spin Current in Single Molecular Magnet Junctions

NIU Peng-Bin^1**, SHI Yun-Long¹, SUN Zhu¹, NIE Yi-Hang², LUO Hong-Gang^3,4

¹Institute of Solid State Physics and Department of Physics, Shanxi Datong University, Datong 037009
²Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006
³Center for Interdisciplinary Studies & Key Laboratory for Magnetism and Magnetic Materials (Ministry of Education), Lanzhou University, Lanzhou 730000
⁴Beijing Computational Science Research Center, Beijing 100084

Cite this article:

NIU Peng-Bin, SHI Yun-Long, SUN Zhu et al 2015 Chin. Phys. Lett. 32 117201

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Abstract

Owing to the bistable character of the single molecular magnet (SMM), it can generate 100% spin-polarized currents even connected with normal (N) leads. In this work, we study the phonon-assisted spin current in N-SMM-N systems. We mainly focus on the interplay of SMM's bistable character and electron–phonon coupling. It is found that when SMM is trapped in one of the lowest bistable states, it can generate phonon-assisted spin-polarized currents. At the up-spin transport channel, it is accompanied by a phonon-assisted up-spin current, while at the down-spin transport channel, it is accompanied by a phonon-assisted down-spin current.

Received: 15 July 2015 Published: 01 December 2015

PACS:	72.25.-b	(Spin polarized transport)
	85.75.-d	(Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)
	73.23.Hk	(Coulomb blockade; single-electron tunneling)
	75.50.Xx	(Molecular magnets)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/32/11/117201 OR https://cpl.iphy.ac.cn/Y2015/V32/I11/117201

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	NIU Peng-Bin
	SHI Yun-Long
	SUN Zhu
	NIE Yi-Hang
	LUO Hong-Gang

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