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171 papers · 1 filter
Effect of spin-orbit coupling on spin and orbital ordering in SrCrO,
Cristian Fanjul, A. A. Aligia
We incorporate spin-orbit coupling (SOC) into effective Kugel-Khomskii models for the and members of the Ruddlesden-Popper series SrCrO. These mode…
Tunneling spectroscopy of the spinon-Kondo effect in one-dimensional Mott insulators
Rodrigo G. Pereira, Bruno F. Marquez, Karen Hallberg +2
We study the tunneling density of states (TDOS) in one-dimensional Mott insulators at energies below the charge gap. By employing nonlinear Luttinger liquid theory and density-matr…
Low-energy structure and topology of the two-band Hubbard-Kanamori model
Nayara G. Gusmão, Germán Blesio, Armando Aligia +3
We investigate the Mott transition in a two-band Hubbard-Kanamori model using Dynamical Mean-Field Theory (DMFT) with the Density Matrix Renormalization Group (DMRG) and the Numeri…
Phase diagram and topology of the XXZ chain with alternating bonds and staggered magnetic field
B. F. Márquez, N. Aucar Boidi, K. Hallberg +1
The XXZ spin-half chain has Heisenberg exchange interactions () in the () direction. The model has a transition from the spin-fluid phase for $-J_\perp < J_…
Magnetic structure and component-separated transitions of HoNiSi
R. Tartaglia, F. R. Arantes, C. W. Galdino +7
HoNiSi is an intermetallic compound characterized by two successive antiferromagnetic transitions at K and K. Here, its zero-field microscopic…
Unconventional correlated metallic behavior due to interorbital Coulomb interaction
N. Aucar Boidi, A. P. Kampf, K. Hallberg
We study the non-degenerate one dimensional two-orbital Hubbard model with interorbital Coulomb interaction. By means of the density-matrix renormalization group technique, we calc…