8 citations · 9 across the 8 of their papers we have counts for
8 papers
Bond-operator analytical approach for the - model
A. V. Syromyatnikov
We present a bond-operator theory (BOT) for analytical consideration of the - model and its extensions with longer-rage hopping terms. This technique is based on previously s…
Field-induced transitions from incommensurate to commensurate phases in helical antiferromagnets
P. T. Bolokhova, A. V. Syromyatnikov
Heisenberg antiferromagnet with an easy-plane anisotropy is discussed in which a magnetic spiral is induced by Dzyaloshinskii-Moriya interaction and/or frustration of the exchange…
Elementary excitations in undoped layered cuprates
A. V. Syromyatnikov
Using the recently proposed bond-operator technique (BOT), we discuss spin dynamics of the Heisenberg spin- antiferromagnet with the ring exchange and small interactions b…
Dynamics of anisotropic frustrated antiferromagnet Cs2CoBr4 in a spin-liquid regime
T. A. Soldatov, A. I. Smirnov, A. V. Syromyatnikov
Cs2CoBr4 is a triangular-lattice antiferromagnet which can be viewed as weakly interacting spin chains due to spatially anisotropic frustrating exchange couplings. The spin-orbit i…
Ferromagnetic monolayer with interfacial Dzyaloshinskii-Moriya interaction: magnon spectrum and effect of quenched disorder
Oleg I. Utesov, Arseny V. Syromyatnikov
We discuss theoretically a ferromagnetic monolayer with an interfacial Dzyaloshinskii-Moriya interaction (iDMI) and a small axial anisotropy. It is shown that the system has a long…
Antiferromagnet with two coupled antiferromagnetic sublattices in a magnetic field
Alexey V Sizanov, Arseny V Syromyatnikov
We discuss the magnon spectrum of an antiferromagnet (AF) in a magnetic field consisting of two interpenetrating AF sublattices coupled by the exchange interaction at T=0. One-…