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The Effective Spin Hamiltonian and Phase Separation Instability of the Almost Half-Filled Hubbard Model and Narrow-Band {\it S-f} Model
M. I. Auslender, M. I. Katsnelson
The effective spin Hamiltonian is constructed in the framework of the almost half-filled Hubbard model on the Cayley tree by means of functional integral technique with the use of…
Sum rules for X-ray magnetic circular dichroism spectra in strongly correlated ferromagnets
V. Yu. Irkhin, M. I. Katsnelson
It is proven that the sum rules for X-ray magnetic dichroism (XMCD) spectra that are used to separate spin and orbital contributions to the magnetic moment are formally correct for…
Electronic Structure and Magnetic Properties of Solids
S. Y. Savrasov, A. Toropova, M. I. Katsnelson +3
We review basic computational techniques for simulations of various magnetic properties of solids. Several applications to compute magnetic anisotropy energy, spin wave spectra, ma…
Ab initio electronic structure calculation of correlated systems: EMTO-DMFT approach
L. Chioncel, L. Vitos, I. A. Abrikosov +3
We propose a self-consistent method for electronic structure calculations of correlated systems, which combines the local spin-density approximation (LSDA) and the dynamical mean f…
Spectral density functional approach to electronic correlations and magnetism in crystals
A. I. Lichtenstein, M. I. Katsnelson, G. Kotliar
A novel approach to electronic correlations and magnetism of crystals based on realistic electronic structure calculations is reviewed. In its simplest form it is a combination of…
Observation of Hubbard Bands in -Manganese
S. Biermann, A. Dallmeyer, C. Carbone +5
We present angle-resolved photoemission spectra of the -phase of manganese as well as a theoretical analysis using a recently developed approach that combines density functional…