Relaxation of Strongly Suppressed Modulus of Magnetization Following Ultrafast Demagnetization

I. A. Yastremsky

Taras Shevchenko National University of Kyiv, 64 Volodymyrska Str., 01601 Kyiv, Ukraine

Received: 23.08.2014. Download: PDF

A longitudinal nonlinear relaxation of magnetization following the ultrafast demagnetization is considered. As demonstrated, the fastest regime occurs for a small deviation of the magnetization from the equilibrium value. However, the relaxation time of strongly suppressed magnetization is substantially increased due to a nonlinearity of magnetic system.

Key words: ferromagnets, femtosecond laser pulse, ultrafast demagnetization, relaxation effects.

URL: http://mfint.imp.kiev.ua/en/abstract/v36/i09/1145.html

DOI: https://doi.org/10.15407/mfint.36.09.1145

PACS: 75.30.Cr, 75.40.Gb, 75.60.-d, 75.78.Jp, 76.20.+q

Citation: I. A. Yastremsky, Relaxation of Strongly Suppressed Modulus of Magnetization Following Ultrafast Demagnetization, Metallofiz. Noveishie Tekhnol., 36, No. 9: 1145—1151 (2014)


REFERENCES
  1. A. Kirilyuk, A. V. Kimel, and Th. Rasing, Rev. Mod. Phys., 82: 2731 (2010). Crossref
  2. E. Beaurepaire, J.-C. Merle, A. Daunois, and J.-Y. Bigot, Phys. Rev. Lett., 76: 4250 (1996). Crossref
  3. K. Vahaplar, A. M. Kalashnikova, A. V. Kimel, D. Hinzke, U. Nowak, R. Chantrell, A. Tsukamoto, A. Itoh, A. Kirilyuk, and Th. Rasing, Phys. Rev. Lett., 103: 117201 (2009). Crossref
  4. A. V. Kimel, A. Kirilyuk, A. Tsvetkov, R. V. Pisarev, and T. Rasing, Nature, 429: 850 (2004). Crossref
  5. I. Radu, K. Vahaplar, C. Stamm, T. Kachel, N. Pontius, H. A. Durr, T. A. Ostler, J. Barker, R. F. L. Evans, R. W. Chantrell, A. Tsukamoto, A. Itoh, A. Kirilyuk, Th. Rasing, and A. V. Kimel, Nature, 472: 205 (2011). Crossref
  6. T. A. Ostler, J. Barker, R. F. L. Evans, R. W. Chantrell, U. Atxitia, O. Chubykalo-Fesenko, S. El Moussaoui, L. Le Guyader, E. Mengotti, L. J. Heyderman, F. Nolting, A.Tsukamoto, A. Itoh, D. Afanasiev, B. A. Ivanov, A. M. Kalashnikova, K. Vahaplar, J. Mentink, A. Kirilyuk, Th. Rasing, and A. V. Kimel, Nature Commun., 3: 666 (2012). Crossref
  7. S. Mangin, M. Gottwald, C.-H. Lambert, D. Steil, V. Uhlir, L. Pang, M. Hehn, S. Alebrand, M. Cinchetti, G. Malinowski, Y. Fainman, M. Aeschlimann, and E. E. Fullerton, Nature Mater., 13, 286 (2014). Crossref
  8. V. G. Bar'yakhtar, Zh. Eksp. Theor. Fiz., 87: 1501 (1984) (in Russian); idem, Sov. Phys. JETP, 60: 863 (1984).
  9. V. G. Bar'yakhtar, Fizika Tverdogo Tela, 29: 1317 (1987) (in Russian); idem, Sov. Phys. Solid State, 29: 754 (1987).
  10. V. G. Bar'yakhtar, Physica B, 159: 20 (1989). Crossref
  11. M. Dvornik, A. Vansteenkiste, and B. Van Waeyenberge, Phys. Rev. B, 88: 054427 (2013). Crossref
  12. Y. Au, M. Dvornik, T. Davison, E. Ahmad, P. S. Keatley, A. Vansteenkiste, B. Van Waeyenberge, and V. V. Kruglyak, Phys. Rev. Lett., 110: 097201 (2013). Crossref
  13. I. A. Yastremsky, P. M. Oppeneer, and B. A. Ivanov, Phys. Rev. B, 90: 022409 (2014). Crossref
  14. V. G. Bar'yakhtar, B. A. Ivanov, T. K. Soboleva, and A. L. Sukstansky, Zh. Eksp. Teor. Fiz., 91, No. 4: 1454 (1986) (in Russian); idem, Sov. Phys. JETP, 64, No. 4: 857 (1986).
  15. V. G. Bar'yakhtar, B. A. Ivanov, and K. A. Safaryan, Solid State Commun., 72: 1117 (1989). Crossref
  16. E. G. Galkina, B. A. Ivanov, and V. A. Stephanovich, J. Magn. Magn. Mater., 118(3): 373 (1993). Crossref
  17. J. H. Mentink, J. Hellsvik, D. V. Afanasiev, B. A. Ivanov, A. Kirilyuk, A. V. Kimel, O. Eriksson, M. I. Katsnelson, and Th. Rasing, Phys. Rev. Lett., 108: 057202 (2012). Crossref
  18. V. G. Bar'yakhtar, V. I. Butrim, and B. A. Ivanov, JETP Letters, 98, No. 5: 289 (2013). Crossref
  19. 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, and P. M. Oppeneer, Nature Commun., 3: 1037 (2012). Crossref
  20. M. Battiato, K. Carva, and P. M. Oppeneer, Phys. Rev. Lett., 105: 027203 (2010). Crossref
  21. M. Battiato, K. Carva, and P. M. Oppeneer, Phys. Rev. B, 86: 024404 (2012). Crossref
  22. D. A. Garanin, Phys. Rev. B, 55: 3050 (1997). Crossref
  23. D. A. Garanin and O. Chubykalo-Fesenko, Phys. Rev. B, 70: 212409 (2004). Crossref
  24. R. F. L. Evans, D. Hinzke, U. Atxitia, U. Nowak, R. W. Chantrell, and O. Chubykalo-Fesenko, Phys. Rev. B, 85: 014433 (2012). Crossref
  25. I. A. Yastremsky, Fizika Tverdogo Tela, 56: 1076 (2014) (in Russian); idem, Phys. Solid State, 56, Iss. 6: 1118 (2014). Crossref
  26. A. I. Akhiezer, V. G. Bar'yakhtar, and S. V. Peletminskii, Spin Waves (Amsterdam: North-Holland: 1968).