99 citations · 817 across the 52 of their papers we have counts for
5 papers · 1 filter
Zigzag and Checkerboard Magnetic Patterns in Orbitally Directional Double-Exchange Systems
W. Brzezicki, C. Noce, A. Romano +1
We analyze a double-exchange system where the orbital directionality of the itinerant degrees of freedom is a key dynamical feature that self-adjusts in response to doping…
Spin-Orbital Order Modified by Orbital Dilution in Transition Metal Oxides: From Spin Defects to Frustrated Spins Polarizing Host Orbitals
Wojciech Brzezicki, Andrzej M. Oleś, Mario Cuoco
We study the substitution in transition metal oxides in the cases of doping at either or sites which realize orbital dilution. We derive the effectiv…
Exotic Spin Order due to Orbital Fluctuations
Wojciech Brzezicki, Jacek Dziarmaga, Andrzej M. Oleś
We investigate the phase diagrams of the spin-orbital Kugel-Khomskii model for increasing system dimensionality: from the square lattice monolayer, via the bilayer to the cub…
Hole propagation in the orbital compass models
Wojciech Brzezicki. Maria Daghofer, Andrzej M. Oleś
We explore the propagation of a single hole in the generalized quantum compass model which interpolates between fully isotropic antiferromagnetic (AF) phase in the Ising model and…
Locally tunable disorder and entanglement in the one-dimensional plaquette orbital model
Wojciech Brzezicki, Andrzej M. Oleś
We introduce a one-dimensional plaquette orbital model with a topology of a ladder and alternating interactions between and pseudospin components along both the ladder legs…