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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 | Abstract: | We 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 | Services: | Forum | Review | PDF | Favorites |
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