A. Oleś

activity

19972021

most citedQuantum Melting of Magnetic Order due to Orbital Fluctuations

274 citations · 3.3k across the 96 of their papers we have counts for

collaborators

Showing 2018Show all

2 papers · 1 filter

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 $R_{1 - x}$ (Sr,Ca) $_{x}$ VO $_{3}$ ( $R =$ Pr,Y,La) caused by charged (Sr,Ca) defects. Our unrestricted Hartree-Fock an…

cond-mat.str-el2018★ 13 cited

From "Weak" to "Strong" Hole Confinement in a Mott Insulator

Krzysztof Bieniasz, Piotr Wrzosek, Andrzej M. Oles +1

We study the problem of a single hole in an Ising antiferromagnet and, using the magnon expansion and analytical methods, determine the expansion coefficients of its wave function…