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

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

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

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.
Original languageEnglish
Title of host publicationLocal-Moment Ferromagnets
EditorsProfessor Markus Donath, Professor Wolfgang Nolting
Place of PublicationHeidelberg
PublisherSpringer Berlin - Heidelberg
Pages31-45
Number of pages15
Volume678
ISBN (Print)978-3-540-27286-1 978-3-540-31516-2
DOIs
Publication statusPublished - 2005

Publication series

NameLecture Notes in Physics
PublisherSpringer Berlin Heidelberg

Keywords

  • Magnetism, Magnetic Materials, Physics and Applied Physics in Engineering

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