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Ultrafast Demagnetization After Laser Pulse Irradiation in Ni: Ab Initio Electron-Phonon Scattering and Phase Space Calculations

  • Christian Illg
  • Michael Haag
  • Manfred FähnleEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 159)

Abstract

Electron-phonon scattering is one possible candidate to explain ultrafast demagnetization in Ni. We calculate the demagnetization time and the demagnetization rate with ab initio density-functional theory and estimate the phase space for scattering which is related to the maximum possible demagnetization. We find that both demagnetization rate and phase space are too small for reasonable excitations to explain the experimental demagnetization.

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Notes

Acknowledgments

The authors thank K. Carva, B. Koopmans, P. M. Oppeneer, A. J. Schellekens, and H. C. Schneider for helpful discussions.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Max Planck Institute for Intelligent SystemsStuttgartGermany

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