Ultrafast demagnetization rates in two- component magnetic materials

O. Chubykalo-Fesenko; U. Atxitia; P. Nieves; J. Barker; R. W. Chantrell

doi:10.1007/978-3-319-07743-7_78

Ultrafast demagnetization rates in two- component magnetic materials

O. Chubykalo-Fesenko, U. Atxitia, P. Nieves, J. Barker, R. W. Chantrell

Institute for Materials Research (IMR)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The recently derived Landau-Lifshitz-Bloch equation of motion for two-component magnetic systems, including ferri- ferro- and antiferromagnets, provides a framework to analyze species dependent ultra fast demagnetization rates. In agreement with reported experimental observations, we show that Gd sublattice demagnetizes slower then FeCo in GdFeCo. However, we predict that at high initial temperatures Gd should be faster than Fe, providing the possibility to control the polarity of the transient antiferromagnetic state. Our results indicate that typically Fe should be slower than Ni in FeNi. The situation is opposite if Fe is 4 times stronger coupled to the electronic system than Ni.

Original language	English
Title of host publication	Ultrafast Magnetism I - Proceedings of the International Conference, UMC 2013
Editors	Roy Chantrell, Jean-Yves Bigot, Wolfgang Hübner, Theo Rasing
Publisher	Springer Science and Business Media, LLC
Pages	251-254
Number of pages	4
ISBN (Electronic)	9783319077420
DOIs	https://doi.org/10.1007/978-3-319-07743-7_78
Publication status	Published - 2015 Jan 1
Event	International Conference on Ultrafast Magnetism, UMC 2013 - Strasbourg, France Duration: 2013 Oct 28 → 2013 Nov 1

Publication series

Name	Springer Proceedings in Physics
Volume	159
ISSN (Print)	0930-8989
ISSN (Electronic)	1867-4941

Other

Other	International Conference on Ultrafast Magnetism, UMC 2013
Country	France
City	Strasbourg
Period	13/10/28 → 13/11/1

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1007/978-3-319-07743-7_78

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Cite this

Chubykalo-Fesenko, O., Atxitia, U., Nieves, P., Barker, J., & Chantrell, R. W. (2015). Ultrafast demagnetization rates in two- component magnetic materials. In R. Chantrell, J-Y. Bigot, W. Hübner, & T. Rasing (Eds.), Ultrafast Magnetism I - Proceedings of the International Conference, UMC 2013 (pp. 251-254). (Springer Proceedings in Physics; Vol. 159). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-319-07743-7_78

Ultrafast demagnetization rates in two- component magnetic materials. / Chubykalo-Fesenko, O.; Atxitia, U.; Nieves, P.; Barker, J.; Chantrell, R. W.

Ultrafast Magnetism I - Proceedings of the International Conference, UMC 2013. ed. / Roy Chantrell; Jean-Yves Bigot; Wolfgang Hübner; Theo Rasing. Springer Science and Business Media, LLC, 2015. p. 251-254 (Springer Proceedings in Physics; Vol. 159).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chubykalo-Fesenko, O, Atxitia, U, Nieves, P, Barker, J & Chantrell, RW 2015, Ultrafast demagnetization rates in two- component magnetic materials. in R Chantrell, J-Y Bigot, W Hübner & T Rasing (eds), Ultrafast Magnetism I - Proceedings of the International Conference, UMC 2013. Springer Proceedings in Physics, vol. 159, Springer Science and Business Media, LLC, pp. 251-254, International Conference on Ultrafast Magnetism, UMC 2013, Strasbourg, France, 13/10/28. https://doi.org/10.1007/978-3-319-07743-7_78

Chubykalo-Fesenko O, Atxitia U, Nieves P, Barker J, Chantrell RW. Ultrafast demagnetization rates in two- component magnetic materials. In Chantrell R, Bigot J-Y, Hübner W, Rasing T, editors, Ultrafast Magnetism I - Proceedings of the International Conference, UMC 2013. Springer Science and Business Media, LLC. 2015. p. 251-254. (Springer Proceedings in Physics). https://doi.org/10.1007/978-3-319-07743-7_78

Chubykalo-Fesenko, O. ; Atxitia, U. ; Nieves, P. ; Barker, J. ; Chantrell, R. W. / Ultrafast demagnetization rates in two- component magnetic materials. Ultrafast Magnetism I - Proceedings of the International Conference, UMC 2013. editor / Roy Chantrell ; Jean-Yves Bigot ; Wolfgang Hübner ; Theo Rasing. Springer Science and Business Media, LLC, 2015. pp. 251-254 (Springer Proceedings in Physics).

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