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Thermopower of the Correlated Narrow Gap Semiconductor FeSi and Comparison to RuSi
Jan M. Tomczak, K. Haule, G. Kotliar
Iron based narrow gap semiconductors such as FeSi, FeSb2, or FeGa3 have received a lot of attention because they exhibit a large thermopower, as well as striking similarities to he…
Impurity model for non-equilibrium steady states
Camille Aron, Cedric Weber, Gabriel Kotliar
We propose an out-of-equilibrium impurity model for the dynamical mean-field description of the Hubbard model driven by a finite electric field. The out-of-equilibrium impurity env…
How bad metals turn good: spectroscopic signatures of resilient quasiparticles
Xiaoyu Deng, Jernej Mravlje, Rok Zitko +3
We investigate transport in strongly correlated metals. Within dynamical mean-field theory, we calculate the resistivity, thermopower, optical conductivity and thermodynamic proper…
Importance of many body effects in the kernel of hemoglobin for ligand binding
Cedric Weber, David D. O'Regan, Nicholas D. M. Hine +3
We propose a mechanism for binding of diatomic ligands to heme based on a dynamical orbital selection process. This scenario may be described as bonding determined by local valence…
Orbital selective Fermi surface shifts and mechanism of high T superconductivity in correlated AFeAs (A=Li,Na)
Geunsik Lee, Hyo Seok Ji, Yeongkwan Kim +9
Based on the dynamical mean field theory (DMFT) and angle resolved photoemission spectroscopy (ARPES), we have investigated the mechanism of high superconductivity in stoichi…
Nature of magnetic excitations in superconducting BaFeNiAs
Mengshu Liu, Leland W. Harriger, Huiqian Luo +8
Since the discovery of the metallic antiferromagnetic (AF) ground state near superconductivity in iron-pnictide superconductors, a central question has been whether magnetism in th…