168 citations · 2.1k across the 57 of their papers we have counts for
56 papers
symmetry breaking in quantum antiferromagnets
A. K. Kolezhuk, T. L. Zavertanyi
We study a -symmetric spin- system on a bipartite lattice close to the antiferromagnetic -symmetric point, which can be described by the model with…
Stabilization of magnetic skyrmions by RKKY interactions
Alla V. Bezvershenko, Alexei K. Kolezhuk, Boris A. Ivanov
We study the stabilization of an isolated magnetic skyrmion in a magnetic monolayer on a nonmagnetic conducting substrate via the Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange inte…
Finite-size nanowire at a surface: unconventional power laws of the van der Waals interaction
K. A. Makhnovets, A. K. Kolezhuk
We study the van der Waals interaction of a metallic or narrow-gap semiconducting nanowire with a surface, in the regime of intermediate wire-surface distances $(v_{F}/c)L \ll d \l…
Unconventional spin dynamics in the honeycomb-lattice material -RuCl: high-field ESR studies
A. N. Ponomaryov, E. Schulze, J. Wosnitza +8
We present high-field electron spin resonance (ESR) studies of the honeycomb-lattice material -RuCl, a prime candidate to exhibit Kitaev physics. Two modes of antiferromagne…
On Short-Range Enhancement of Van-der-Waals Forces
K. Makhnovets, A. Kolezhuk
We show that for nanoparticles with giant polarizability (a prominent example being the recently studied NaF molecular clusters) van der Waals forces are signific…
Fidelity at Berezinskii-Kosterlitz-Thouless quantum phase transitions
G. Sun, A. K. Kolezhuk, T. Vekua
We clarify the long-standing controversy concerning the behavior of the ground state fidelity in the vicinity of a quantum phase transition of the Berezinskii-Kosterlitz-Thouless t…