115 citations · 630 across the 16 of their papers we have counts for
16 papers
Superconductivity of Mo3Sb7 from first principles
Bartlomiej Wiendlocha, Janusz Tobola, Malgorzata Sternik +3
Superconductivity in Mo3Sb7 is analyzed using the combined electronic structure and phonon calculations, and the electron--phonon coupling constant λ_{ph}=0.54 is determined from f…
Thermally activated Peierls dimerization in ferromagnetic spin chains
J. Sirker, A. Herzog, A. M. Oles +1
We demonstrate that a Peierls dimerization can occur in ferromagnetic spin chains activated by thermal fluctuations. The dimer order parameter and entanglement measures are studied…
Frustration and entanglement in the spin--orbital model on a triangular lattice: valence--bond and generalized liquid states
Bruce Normand, Andrzej M. Oles
We consider the spin--orbital model for a magnetic system with singly occupied but triply degenerate orbitals coupled into a planar, triangular lattice, as would be exempl…
Absence of Hole Confinement in Transition Metal Oxides with Orbital Degeneracy
M. Daghofer, K. Wohlfeld, A. M. Oles +2
We investigate the spectral properties of a hole moving in a two-dimensional Hubbard model for strongly correlated t_2g electrons. Although superexchange interactions are Ising-lik…
Order parameters in the Verwey phase transition
P. Piekarz, K. Parlinski, A. M. Oles
The Verwey phase transition in magnetite is analyzed on the basis of the Landau theory. The free energy functional is expanded in a series of components belonging to the primary an…
Origin of the Verwey transition in magnetite: Group theory, electronic structure, and lattice dynamics study
Przemyslaw Piekarz, Krzysztof Parlinski, Andrzej M. Oles
The Verwey phase transition in magnetite has been analyzed using the group theory methods. It is found that two order parameters with the symmetries and induce the stru…