Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 77, Issue 3, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.77.031009
Keywords
spin transport; spin injection; spin accumulation; spin current; spin absorption; spin Hall effect; magnetic nanostructure
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The nonlocal spin transport in a nanostructure device consisting of ferromagnetic spin injector (F1) and spin detector (F2) electrodes connected to a normal conductor (N) or a superconductor (SC) is discussed. We explore how the spin transport in such a device depends on the nature of interface (metallic-contact or tunnel junction) and material parameters of electrodes by solving the spin-dependent transport equations, and obtain the conditions for efficient spin injection, spin accumulation, and spin cur-rent. In a device with SC, the spin transport is strongly affected by the onset of superconductivity. Nonlocal Spin Hall effect in metals and SCs are investigated. A superconducting qubit with a pi junction is discussed.
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