A possibility of increasing spin injection efficiency in magnetic junctions

2006/07/24 by É. M. Épshteǐn, Yu. V. Gulyaev, Epshtein, E. M. +5
Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices

paper · pdf · doi:10.48550/arxiv.cond-mat/0607592

openalex publication_date 2006/07/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Nonequilibrium electron spin polarization is calculated under spin injection from one ferromagnet to another in magnetic junction. It is shown that the nonequilibrium spin polarization can be comparable with equilibrium one if the material parameters are chosen appropriately. This leads to lowering the threshold current density necessary for the junction switching and opens a perspective to creating THz laser based on the spin-polarized current injection.

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