All-electric-controlled spin current switching in single-molecule magnet-tunnel junctions

doi:10.1088/1674-1056/20/4/047504

Abstract A single-molecule magnet (SMM) coupled to two normal metallic electrodes can both switch spin-up and spin-down electronic currents within two different windows of SMM gate voltage. Such spin current switching in the SMM tunnel junction arises from spin-selected single electron resonant tunneling via the lowest unoccupied molecular orbit of the SMM. Since it is not magnetically controlled but all-electrically controlled, the proposed spin current switching effect may have potential applications in future spintronics.

Keywords: molecular magnets spin polarized transport single-electron tunneling

Received: 28 December 2010
Revised: 14 January 2011
Accepted manuscript online:

PACS:	75.50.Xx	(Molecular magnets)
	72.25.-b	(Spin polarized transport)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60825402, 60421003, 11074111 and 10974058) and the State Key Program for Basic Research of China (Grant Nos. 2011CB922103, 2009CB929504 and 2011CBA00205).

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Zhang Zheng-Zhong(张正中), Shen Rui(沈瑞), Sheng Li(盛利), Wang Rui-Qiang(王瑞强), Wang Bai-Gen(王伯根), and Xing Ding-Yu(邢定钰) All-electric-controlled spin current switching in single-molecule magnet-tunnel junctions 2011 Chin. Phys. B 20 047504

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All-electric-controlled spin current switching in single-molecule magnet-tunnel junctions

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