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Aspects of the FM Kondo Model: From Unbiased MC Simulations to Back-of-an-Envelope Explanations

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Book cover Local-Moment Ferromagnets

Part of the book series: Lecture Notes in Physics ((LNP,volume 678))

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Abstract

Effective models are derived from the ferromagnetic Kondo lattice model with classical corespins, which greatly reduce the numerical effort. Results for these models are presented. They indicate that double exchange gives the correct order of magnitude and the correct doping dependence of the Curie temperature. Furthermore, we find that the jump in the particle density previously interpreted as phase separation is rather explained by ferromagnetic polarons.

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Authors and Affiliations

  1. Institute for Theoretical and Computational Physics, Graz University of Technology, Graz, Austria

    Maria Daghofer, Alexander Prüll, Hans Gerd Evertz & Wolfgang von der Linden

  2. Department of Mathematics, Imperial College, London

    Winfried Koller

Authors
  1. Maria Daghofer
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  2. Winfried Koller
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  3. Alexander Prüll
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  4. Hans Gerd Evertz
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  5. Wolfgang von der Linden
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Editor information

Markus Donath Wolfgang Nolting

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Daghofer, M., Koller, W., Prüll, A., Gerd Evertz, H., von der Linden, W. Aspects of the FM Kondo Model: From Unbiased MC Simulations to Back-of-an-Envelope Explanations. In: Donath, M., Nolting, W. (eds) Local-Moment Ferromagnets. Lecture Notes in Physics, vol 678. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11417255_3

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  • DOI: https://doi.org/10.1007/11417255_3

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  • Print ISBN: 978-3-540-27286-1

  • Online ISBN: 978-3-540-31516-2

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