Theory of Femtosecond Laser-Induced Demagnetization

  • Karel Carva
  • Marco Battiato
  • Dominik Legut
  • Peter M. OppeneerEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 159)


Using ab initio calculations we computed the ultrafast demagnetization that can be achieved by Elliott-Yafet electron-phonon spin-flip scatterings in laser-excited ferromagnets. Our calculations show that nonequilibrium laser-created distributions contribute mostly to the ultrafast demagnetization. Nonetheless, the total Elliott-Yafet contribution is too small to account for the fs-demagnetization.


Spin Angular Momentum Exchange Splitting Eliashberg Function Thin Iron Film Ferromagnetic Transition Metal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



The authors gratefully acknowledge financial support from the EU (grant No. 281043, “FemtoSpin”).


  1. 1.
    E. Beaurepaire, J.-C. Merle, A. Daunois, J.-Y. Bigot, “Ultrafast Spin Dynamics in Ferromagnetic Nickel” Phys. Rev. Lett. 76, 4250 (1996).Google Scholar
  2. 2.
    A. Kirilyuk, A. Kimel, Th. Rasing, “Ultrafast optical manipulation of magnetic order” Rev. Mod. Phys. 82, 2731 (2010).Google Scholar
  3. 3.
    P. M. Oppeneer, A. Liebsch, “Ultrafast demagnetization in Ni: theory of magneto-optics for non-equilibrium electron distributions” J. Phys.: Condens. Matter 16, 5519 (2004).Google Scholar
  4. 4.
    G. P. Zhang, W. Hübner, G. Lefkidis, Y. Bai, T. F. George, “Paradigm of the time-resolved magneto-optical Kerr effect for femtosecond magnetism” Nature Phys. 5, 499 (2009).Google Scholar
  5. 5.
    K. Carva, M. Battiatio, P.M. Oppeneer, “Reply: “Is the controversy over femtosecond magneto-optics really solved?”” Nature Phys. 7, 665 (2011).Google Scholar
  6. 6.
    G. P. Zhang, W. Hübner, “Laser-Induced Ultrafast Demagnetization in Ferromagnetic Metals” Phys. Rev. Lett. 85, 3025 (2000).Google Scholar
  7. 7.
    E. Carpene, E. Mancini, C. Dallera, M. Brenna, E. Puppin, S. De Silvestri, “Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films” Phys. Rev. B 78, 174422 (2008).Google Scholar
  8. 8.
    M. Krauss, T. Roth, S. Alebrand, D. Steil, M.Cinchetti, M. Aeschlimann, H. C. Schneider, “Ultrafast demagnetization of ferromagnetic transition metals: The role of the Coulomb interaction” Phys. Rev. B 80, 180407 (2009).Google Scholar
  9. 9.
    B. Koopmans, G. Malinowski, F. Dalla Longa, D. Steiauf, M. Fähnle, T. Roth, M. Cinchetti, M. Aeschlimann, “Explaining the paradoxical diversity of ultrafast laser-induced demagnetization” Nature Mater. 9, 259 (2010).Google Scholar
  10. 10.
    M. Battiato, K. Carva, P.M. Oppeneer, “Superdiffusive Spin Transport as a Mechanism of Ultrafast Demagnetization” Phys. Rev. Lett. 105, 027203 (2010).Google Scholar
  11. 11.
    D. Rudolf, C. La-O-Vorakiat, M. Battiato, R. Adam, J. M. Shaw, E. Turgut, P. Maldonado, S. Mathias, P. Grychtol, H. T. Nembach, T. J. Silva, M. Aeschlimann, H. C. Kapteyn, M. M. Murnane, C. M. Schneider, P. M. Oppeneer, “Ultrafast magnetization enhancement in metallic multilayers driven by superdiffusive spin current” Nature Commun. 3, 1037 (2012).Google Scholar
  12. 12.
    B. Vodungbo et al., “Laser-induced ultrafast demagnetization in the presence of a nanoscale magnetic domain network.” Nature Commun. 3, 999 (2012).Google Scholar
  13. 13.
    B. Pfau et al., “Ultrafast optical demagnetization manipulates nanoscale spin structure in domain walls”  NatureCommun. 3, 1100 (2012).Google Scholar
  14. 14.
    K. Carva, M. Battiatio, P.M. Oppeneer, “Ab Initio Investigation of the Elliott-Yafet Electron-Phonon Mechanism in Laser-Induced Ultrafast Demagnetization” Phys. Rev. Lett. 107, 207201 (2011).Google Scholar
  15. 15.
    S. Essert, H. C. Schneider, “Electron-phonon scattering dynamics in ferromagnetic metals and their influence on ultrafast demagnetization processes” Phys. Rev. B 84, 224405 (2011).Google Scholar
  16. 16.
    X. Wang, S. Nie, J. Li, R. Clinite, J. E. Clark, J. Cao, “Temperature dependence of electron-phonon thermalization and its correlation to ultrafast magnetism” Phys. Rev. B 81, 220301 (2010).Google Scholar
  17. 17.
    K. Carva, M. Battiatio, D. Legut, P.M. Oppeneer, “Ab initio theory of electron-phonon mediated ultrafast spin relaxation of laser-excited hot electrons in transition-metal ferromagnets” Phys. Rev. B 87, 184425 (2013)Google Scholar
  18. 18.
    A.J. Schellekens, B. Koopmans, “Comparing Ultrafast Demagnetization Rates Between Competing Models for Finite Temperature Magnetism” Phys. Rev. Lett. 110, 217204 (2013)Google Scholar
  19. 19.
    A. L. Wysocki, R. F. Sabirianov, M. van Schilfgaarde, K. D. Belashchenko, “First-principles analysis of spin-disorder resistivity of Fe and Ni” Phys. Rev. B 80, 224423 (2009).Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Karel Carva
    • 1
    • 2
  • Marco Battiato
    • 1
  • Dominik Legut
    • 3
  • Peter M. Oppeneer
    • 1
    Email author
  1. 1.Department of Physics and AstronomyUppsala UniversityUppsalaSweden
  2. 2.Department of Condensed Matter PhysicsCharles UniversityPrague 2Czech Republic
  3. 3.Nanotechnology CentreVSB-Technical University of OstravaOstravaCzech Republic

Personalised recommendations