3 papers
cond-mat.str-el2020
Quantum correlations in the spin-1/2 Heisenberg XXZ chain with modulated Dzyaloshinskii-Moriya interaction
F. Khastehdel Fumani, B. Beradze, S. Nemati +2
We study a one-dimensional spin-1/2 XXZ Heisenberg model with alternating Dzyaloshinskii- Moriya interaction, using the numerical Lanczos method. Recently, the ground state (GS) ph…
cond-mat.str-el2019
Magnetic phase diagram of a spin S=1/2 antiferromagnetic two-leg ladder in the presence of modulated along legs Dzyaloshinskii-Moriya interaction
Niko Avalishvili, Bachana Beradze, George I. Japaridze
We study the ground-state magnetic phase diagram of a spin S=1/2 antiferromagnetic two-leg ladder in the presence of period two lattice units modulated, Dzyaloshinskii-Moriya (DM)…
cond-mat.mes-hall2018
Trions and biexcitons in a nanowire
R. Ya. Kezerashvili, Z. S. Machavariani, B. Beradze +1
A theory of the trion and biexciton in a nanowire (NW) in the framework of the effective-mass model using the Born-Oppenheimer approximation is presented. We consider the formation…