@article{Mondal2018Unifi-46180,
  year={2018},
  doi={10.1103/PhysRevB.98.214429},
  title={Unified theory of magnetization dynamics with relativistic and nonrelativistic spin torques},
  number={21},
  volume={98},
  issn={2469-9950},
  journal={Physical Review B},
  author={Mondal, Ritwik and Berritta, Marco and Oppeneer, Peter M.},
  note={Article Number: 214429}
}

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    <dc:creator>Berritta, Marco</dc:creator>
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    <dc:contributor>Berritta, Marco</dc:contributor>
    <dcterms:title>Unified theory of magnetization dynamics with relativistic and nonrelativistic spin torques</dcterms:title>
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    <dc:contributor>Oppeneer, Peter M.</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-07-01T11:38:53Z</dc:date>
    <dcterms:issued>2018</dcterms:issued>
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    <dc:creator>Mondal, Ritwik</dc:creator>
    <dcterms:abstract xml:lang="eng">Spin torques play a crucial role in operative properties of modern spintronic devices. To study current-driven magnetization dynamics, spin-torque terms providing the action of spin-polarized currents have previously often been added in a phenomenological way to the Landau-Lifshitz-Gilbert equation describing the local spin dynamics, yet without derivation from fundamental principles. Here, starting from the Dirac-Kohn-Sham theory and incorporating nonlocal spin transport we rigorously derive the various spin-torque terms that appear in current-driven magnetization dynamics. In particular we obtain an extended magnetization dynamics equation that precisely contains the nonrelativistic adiabatic and relativistic nonadiabatic spin-transfer torques of the Berger and Zhang-Li forms as well as relativistic spin-orbit torques. We derive in addition a previously unnoticed relativistic spin-torque term and moreover show that the various obtained spin-torque terms do not appear in the same mathematical form in both the Landau-Lifshitz and Landau-Lifshitz-Gilbert equations of spin dynamics.</dcterms:abstract>
    <dc:contributor>Mondal, Ritwik</dc:contributor>
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