Spin switching via quantum dot spin valves

N.M. Gergs, S.A. Bender, R.A. Duine, D. Schuricht

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)
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Abstract

We develop a theory for spin transport and magnetization dynamics in a quantum dot spin valve, i.e., two magnetic reservoirs coupled to a quantum dot. Our theory is able to take into account effects of strong correlations. We demonstrate that, as a result of these strong correlations, the dot gate voltage enables control over the current-induced torques on the magnets and, in particular, enables voltage-controlled magnetic switching. The electrical resistance of the structure can be used to read out the magnetic state. Our model may be realized by a number of experimental systems, including magnetic scanning-tunneling microscope tips and artificial quantum dot systems.

Original languageEnglish
Article number017701
Pages (from-to)1-5
JournalPhysical Review Letters
Volume120
Issue number1
DOIs
Publication statusPublished - 5 Jan 2018

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