Quantum kinetic theory of current-induced torques in Rashba ferromagnets

By D. Pesin, Allan H. MacDonald. 2012

132 citations recorded by the source corpus.

Motivated by recent experimental studies of thin-film devices containing a single ferromagnetic layer, we develop a quantum kinetic theory of current-induced magnetic torques in Rashba-model ferromagnets. We find that current-induced spin-densities that are responsible for the switching behavior are due most essentially to spin-dependent quasiparticle lifetimes and derive analytic expressions for relevant limits of a simple model. Quantitative model parameter estimates suggest that spin-orbit coupling in the adjacent metal normal magnetic layer plays an essential role in the strength of the switching effect.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/73ccd3f15df04f1541a937aaf2b0403162b9dba9

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Perpendicular magnetic anisotropy at transition metal/oxide interfaces and applications (2017, background): “…SOT arising from the Rashba effect (Manchon and Zhang, 2008; Miron et al., 2010; Miron, Garello et al., 2011; Pi et al., 2010; Suzuki et al., 2011; Pesin and MacDonald, 2012; Wang and Manchon, 2012; Garello et al., 2013; Kim et al., 2013; Yu et al., 2014) or from the spin Hall effect (Miron,…”
Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (2018, background): “…der Bijl and Duine, 2012; Kim et al., 2013b, 2012b; Lee et al., 2015; Manchon and Zhang, 2008; Matos-Abiague and Rodriguez-Suárez, 2009; Tan et al., 2007), or quantummechanical Kubo formula approaches (Li et al., 2015; Pesin and MacDonald, 2012a; Qaiumzadeh et al., 2015; Wang et al., 2012b, 2014).”