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- W4380716587 abstract "We present an extension to simple s-d models, aiming at simulating ultrafast magnetization dynamics and spin transport in metallic heterostructures. In particular, we consider an alternative spin dissipation channel due to a finite exchange splitting of the s band. From this theory, we show three different mechanisms governing the dynamics of spin accumulation. On top of the already widely discussed -dM/dt electron-magnon mechanism, we study the role of a dynamic change of exchange splitting (of conduction electrons) as well as the rotation of spins reflected at an interface with a ferromagnet. Finally, we use the presented theory to explain the recent observation of subpicosecond reversal of a ferromagnet in rare-earth free spin-valves. Our conclusion agrees with the one of reference [1] favoring magnetization reversal due to the rotation of the spin polarization of a reflected spin current." @default.
- W4380716587 created "2023-06-15" @default.
- W4380716587 creator A5009806121 @default.
- W4380716587 date "2023-05-30" @default.
- W4380716587 modified "2023-10-09" @default.
- W4380716587 title "Ultrafast magnetization reversal in ferromagnetic spin valves: An <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi>s</mml:mi><mml:mtext>−</mml:mtext><mml:mi>d</mml:mi></mml:mrow></mml:math> model perspective" @default.
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