Longitudinal and transverse spin current absorptions in a lateral spin-valve structure

被引：11
作者：
Nonoguchi, S. [1 ,2 ]
Nomura, T. [1 ,2 ]
Kimura, T. [1 ,3 ]
机构：
[1] Kyushu Univ, INAMORI Frontier Res Ctr, Adv Elect Res Div, Fukuoka 8190395, Japan
[2] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Fukuoka 8190395, Japan
[3] Japan Sci & Technol Agcy, CREST, Tokyo 1020075, Japan
来源：
PHYSICAL REVIEW B | 2012年 / 86卷 / 10期
关键词：
MAGNETIC MULTILAYERS; ROOM-TEMPERATURE; ACCUMULATION; INJECTION; METALS; HALL;
D O I：
10.1103/PhysRevB.86.104417
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Spin absorption effects for the longitudinal and transverse spin currents in a Permalloy nanowire have been examined by using a lateral spin valve consisting of a V-shaped ferromagnetic injector and detector. The reduction of the nonlocal spin signal due to spin absorption for the transverse spin current was found to be stronger than that for the longitudinal spin current. This result is quantitatively explained by considering the angular dependence of the effective spin polarization, and the fact that the transverse spin relaxation length is less than half that of the longitudinal spin relaxation.
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页数：5
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