The absence of intraband scattering in a consistent theory of Gilbert damping in pure metallic ferromagnets

  title={The absence of intraband scattering in a consistent theory of Gilbert damping in pure metallic ferromagnets},
  author={D. M. Edwards},
  journal={Journal of Physics: Condensed Matter},
  • D. Edwards
  • Published 18 June 2015
  • Physics
  • Journal of Physics: Condensed Matter
Damping of magnetization dynamics in a ferromagnetic metal, arising from spin–orbit coupling, is usually characterised by the Gilbert parameter α. Recent calculations of this quantity, using a formula due to Kambersky, find that it is infinite for a perfect crystal owing to an intraband scattering term which is of third order in the spin–orbit parameter ξ. This surprising result conflicts with recent work by Costa and Muniz who study damping numerically by direct calculation of the dynamical… 

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