Orbital-resolved vortex-core states in FeSe superconductors: A calculation based on a three-orbital model
نویسندگان
چکیده
منابع مشابه
Three orbital model for the iron-based superconductors
The theoretical need to study the properties of the Fe-based high-Tc superconductors using reliable manybody techniques has highlighted the importance of determining what is the minimum number of orbital degrees of freedom that will capture the physics of these materials. While the shape of the Fermi surface FS obtained with the local-density approximation LDA can be reproduced by a two-orbital...
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A fundamental and unconventional characteristic of superconductivity in iron-based materials is that it occurs in the vicinity of two other instabilities. In addition to a tendency towards magnetic order, these Fe-based systems have a propensity for nematic ordering: a lowering of the rotational symmetry while time-reversal invariance is preserved. Setting the stage for superconductivity, it is...
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The magnetic phase diagrams of models for quasi-one-dimensional compounds belonging to the ironbased-superconductor family are presented. The five-orbital Hubbard model and the real-space Hartree–Fock approximation are employed, supplemented by density functional theory to obtain the hopping amplitudes. Phase diagrams are constructed by varying the Hubbard U and Hund J couplings at zero tempera...
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G. B. Martins,1,* A. Moreo,2 and E. Dagotto2 1Department of Physics, Oakland University, Rochester, Michigan 48309, USA 2Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA and Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA (Received 1 December 2012; revised manuscript received 4 January 2013; p...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2015
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.91.214509