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Half-metallic ferromagnets: From band structure to many-body effects
M. I. Katsnelson, V. Yu. Irkhin, L. Chioncel +2
A review of new developments in theoretical and experimental electronic structure investigations of half-metallic ferromagnets (HMF) is presented. Being semiconductors for one spin…
Midgap states in corrugated graphene: Ab-initio calculations and effective field theory
T. O. Wehling, A. V. Balatsky, A. M. Tsvelik +2
We investigate the electronic properties of corrugated graphene and show how rippling-induced pseudomagnetic fields alter graphene's low-energy electronic properties by combining f…
Cluster Dual Fermion Approach to Nonlocal Correlations
H. Hafermann, S. Brener, A. N. Rubtsov +2
We formulate a general cluster Dual Fermion Approach to nonlocal correlations in crystals. The scheme allows the treatment of long-range correlations beyond cluster DMFT and nonloc…
Magnetism and local distortions near carbon impurity in -iron
D. W. Boukhvalov, Yu. N. Gornostyrev, M. I. Katsnelson +1
Local perturbations of crystal and magnetic structure of -iron near carbon interstitial impurity is investigated by {\it ab initio} electronic structure calculations. It is show…
Local impurity effects in superconducting graphene
T. O. Wehling, H. P. Dahal, A. I. Lichtenstein +1
We study the effect of impurities in superconducting graphene and discuss their influence on the local electronic properties. In particular, we consider the case of magnetic and no…
Spin-polarized tunneling microscopy and the Kondo effect
Kelly R. Patton, Stefan Kettemann, Andrey Zhuravlev +1
We present a theory for spin-polarized scanning tunneling microscopy (SP-STM) of a Kondo impurity on an unpolarized metallic substrate. The spin polarization of the SP-STM breaks t…