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29 March 2024
 
  » arxiv » cond-mat/0106295

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Kondo-lattice model: Application to the temperature-dependent electronic structure of EuO(100) films
R. Schiller ; W. Mueller ; W. Nolting ;
Date 15 Jun 2001
Journal Phys. Rev. B 64, 134409 (2001)
Subject Strongly Correlated Electrons | cond-mat.str-el
AbstractWe present calculations for the temperature-dependent electronic structure and magnetic properties of thin ferromagnetic EuO films. The treatment is based on a combination of a multiband-Kondo lattice model with first-principles TB-LMTO band structure calculations. The method avoids the problem of double-counting of relevant interactions and takes into account the correct symmetry of the atomic orbitals. We discuss the temperature-dependent electronic structures of EuO(100) films in terms of quasiparticle densities of states and quasiparticle band structures. The Curie temperature T_C of the EuO films turns out to be strongly thickness-dependent, starting from a very low value = 15K for the monolayer and reaching the bulk value at about 25 layers.
Source arXiv, cond-mat/0106295
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