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Enhancement of nonlocal spin-valve signal using spin accumulation in local spin-valve configuration

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5 Author(s)
Kimura, T. ; RIKEN FRS, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan and CREST, JST, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan ; Hamrle, J. ; Otani, Y. ; Tsukagoshi, K.
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We propose a nonlocal spin-valve measurement combined with a local spin-valve structure to enlarge spin signal. The probe configuration consists of a lateral spin valve with three NiFe wires bridged by a Cu wire. The advantage is that the spin polarization in the Cu wire induced by the spin injection can be enhanced compared to the conventional method.

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Applied Physics Letters  (Volume:85 ,  Issue: 22 )