243 citations · 2.3k across the 105 of their papers we have counts for
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Universal properties of highly frustrated quantum magnets in strong magnetic fields
Oleg Derzhko, Johannes Richter, Andreas Honecker +1
The purpose of the present paper is two-fold. On the one hand, we review some recent studies on the low-temperature strong-field thermodynamic properties of frustrated quantum spin…
A microscopic theory of photonucleation: Density functional approach for the properties of a fluid of two-level atoms, a part of which is excited
Oleg Derzhko, Vasyl Myhal
We use the density functional method to examine the properties of the nonuniform (two-phase) fluid of two-level atoms, a part of which is excited. Basing on the analysis of the equ…
The effects of the symmetric and antisymmetric anisotropies on the dynamics of the spin-1/2 XY chain
O. Derzhko, T. Verkholyak, T. Krokhmalskii +1
The dynamic properties of the spin-1/2 anisotropic XY chain with the Dzyaloshinskii-Moriya (DM) interaction in a transverse field are investigated. Using the Jordan-Wigner transfor…
Finite-temperature order-disorder phase transition in a frustrated bilayer quantum Heisenberg antiferromagnet in strong magnetic fields
Johannes Richter, Oleg Derzhko, Taras Krokhmalskii
We investigate the thermodynamic properties of the frustrated bilayer quantum Heisenberg antiferromagnet at low temperatures in the vicinity of the saturation magnetic field. The l…
Universal low-temperature behavior of frustrated quantum antiferromagnets in the vicinity of the saturation field
Oleg Derzhko, Johannes Richter
We study the low-temperature thermodynamic properties of a number of frustrated quantum antiferromagnets which support localized magnon states in the vicinity of the saturation fie…