A spin injector

Chen, Zhigao; Wang, Baigeng; Xing, D. Y.; Wang, Jian
September 2004
Applied Physics Letters;9/27/2004, Vol. 85 Issue 13, p2553
Academic Journal
We theoretically put forward a spin injector, which consists of a three-terminal ferromagnetic-metal (FM) nonmagnetic-semiconductor (NS)-superconductor (SC) mesoscopic hybrid system. This device can inject not only the spin-up current but also the pure spin current into the NS lead. The crossed Andreev reflection plays a key role in this device. Such a spin injector may be realized within the reach of the present-day technology.


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