ABSTRACT
This chapter discusses the basic aspects for the spin transport in hybrid nanostructures containing normal conducting metals and transition-metal ferromagnets by focusing on the spin current and spin accumulation in a nonlocal spin device of F1/N/F2 structure, where F1 is a spin injector and F2 a spin detector connected to N. It shows that the relative magnitude of the electrode resistance to the interface resistance plays a crucial role for the spin transport in the F1/N/F2 structure. The chapter presents the spin Hall effect in nonmagnetic metals caused by the spin-orbit scattering of conducting electrons, which enables the interconversion between the spin current and charge current using a nonlocal spin device. Nonlocal spin injection in nanostructured devices provides a new opportunity for observing the Hall effect originating from spin-orbit interaction in nonmagnetic conductors, the so-called spin Hall effect. The development of nonlocal spin devices and the exploration of new phenomena opens a new avenue in the research of spintronics.
