61 citations · 615 across the 26 of their papers we have counts for
26 papers
Quantum entanglement in mixed-spin trimer: Effects of a magnetic field and heterogeneous g-factors
Zhirayr Adamyan, Vadim Ohanyan
Mixed spin-(1/2,1/2,1) trimer with two different Landé g-factors and two different exchange couplings is considered. The main feature of the model is non-conserving magnetization.…
Magnetization plateaus and enhanced magnetocaloric effect of a spin-1/2 Ising-Heisenberg and Heisenberg double sawtooth ladder with four-spin interaction
Hamid Arian Zad, Vadim Ohanyan, Azam Zoshki +1
The ground state, the entropy and the magnetic Grüneisen parameter of the antiferromagnetic spin-1/2 Ising-Heisenberg model on a double sawtooth ladder are rigorously investigated…
Electric field driven flat bands: Enhanced magnetoelectric and electrocaloric effects in frustrated quantum magnets
Johannes Richter, Vadim Ohanyan, Jörg Schulenburg +1
The - quantum spin sawtooth chain is a paradigmatic one-dimensional frustrated quantum spin system exhibiting unconventional ground-state and finite-temperature propertie…
Influence of anisotropy on a magnetoelectric effect in spin-1/2 chain in a transverse magnetic field
V. Ohanyan
A magnetoelectric effect according to Katsura-Nagaosa-Balatsky mechanism in spin-1/2 chain in transverse magnetic field is considered. A spatial orientation of the electric fi…
Spin-1/2 chain in a transverse field with regularly alternating -factors: Static and dynamic properties
Taras Krokhmalskii, Taras Verkholyak, Ostap Baran +2
We consider the spin-1/2 isotropic chain in an external magnetic field directed along axis with periodically varying -factors. To reveal the effects of regularly altern…
Magnetocaloric effect in the distorted Ising-Heisenberg double sawtooth spin ladders
Hamid Arian Zad, Vadim Ohanyan
The entropy and cooling rate of the both antiferromagnetic spin-1/2 double sawtooth IsingHeisenberg model and mixed-spin (1,1/2) double sawtooth Ising-Heisenberg model on the disto…