activity
19952020
most citedSpin Order due to Orbital Fluctuations: Cubic Vanadates

179 citations · 2.1k across the 56 of their papers we have counts for

collaborators

56 papers

cond-mat.str-el2020★ 4 cited

Orbital Rotations induced by Charges of Polarons and Defects in Doped Vanadates

Peter Horsch, Andrzej M. Oleś, Adolfo Avella

We explore the competiton of doped holes and defects that leads to the loss of orbital order in vanadate perovskites. In compounds such as LaCaVO spin…

cond-mat.str-el2018★ 19 cited

Defect-induced orbital polarization and collapse of orbital order in doped vanadium perovskites

Adolfo Avella, Andrzej M. Oleś, Peter Horsch

We explore mechanisms of orbital order decay in doped Mott insulators (Sr,Ca)VO (Pr,Y,La) caused by charged (Sr,Ca) defects. Our unrestricted Hartree-Fock an…

cond-mat.str-el2017★ 17 cited

Fingerprints of spin-orbital polarons and of their disorder in the photoemission spectra of doped Mott insulators with orbital degeneracy

Adolfo Avella, Andrzej M. Oleś, Peter Horsch

We explore the effects of disordered charged defects on the electronic excitations observed in the photoemission spectra of doped transition metal oxides in the Mott insulating reg…

cond-mat.str-el2015★ 17 cited

Defects, disorder and strong electron correlations in orbital degenerate, doped Mott insulators

Adolfo Avella, Andrzej M. Oleś, Peter Horsch

We elucidate the effects of defect disorder and - interaction on the spectral density of the defect states emerging in the Mott-Hubbard gap of doped transition-metal oxides,…

cond-mat.str-el2015★ 15 cited

Quantum entanglement in the one-dimensional spin-orbital SU(2) model

Wen-Long You, Peter Horsch, Andrzej M. Oleś

We investigate the phase diagram and the spin-orbital entanglement of a one-dimensional SU(2) model with SU(2) spin exchange and anisotropic orbital exchange int…

cond-mat.str-el2015★ 11 cited

Entanglement Driven Phase Transitions in Spin-Orbital Models

Wen-Long You, Andrzej M. Oleś, Peter Horsch

To demonstrate the role played by the von Neumann entropy spectra in quantum phase transitions we investigate the one-dimensional anisotropic SU(2) spin-orbital model…