期刊
JOURNAL OF SUPERCONDUCTIVITY
卷 14, 期 2, 页码 273-281出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1023/A:1007876421854
关键词
spin injection; spin dynamics; spin relaxation; spin electronics; nonequilibrium superconductivity
The study of the transport and relaxation of spin-polarized carriers in the solid state began about 30 years ago. Tunneling spectroscopy was applied to ferromagnet-insulator-superconductor junctions to demonstrate the polarization of interfacial currents. The use of a ferromagnetic material as an injector and/or detector of polarized carriers has since become a valuable tool, and spin injection has been applied to nonmagnetic metals, superconductors. and semiconductors. The spin injection phenomenology is reviewed in the context of two topics of continuing importance for basic and applied research: (i) the transmission of polarized carriers across ferromagnet/nonmagnetic material interfaces and (ii) carrier spin relaxation inside the nonmagnetic material.
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