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

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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.
Proceedings of Wandlitz Days of Magnetism 2004

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/105618

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0512462
 http://arxiv.org/abs/cond-mat/0512462
 Lecture Notes in Physics, vol. 678, pp. 31 - 45, Springer 2005
 doi:10.1007/11417255_3

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arXiv