Suppression of spin accumulation in nonmagnet due to ferromagnetic ohmic contact

Kimura, T.; Hamrle, J.; Otani, Y.; Tsukagoshi, K.; Aoyagi, Y.
October 2004
Applied Physics Letters;10/25/2004, Vol. 85 Issue 17, p3795
Academic Journal
We experimentally demonstrate that the ohmic contact of a Ni–Fe wire additionally connected to a Cu strip between an injector and detector in a nonlocal spin-valve structure signicantly suppresses the spin polarization induced in the Cu strip. This behavior is attributable to spin current absorption into the connected additional Ni–Fe wire.


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