120 citations · 509 across the 16 of their papers we have counts for
16 papers
The Magnetoelastic Distortion of Multiferroic BiFeO in the Canted Antiferromagnetic State
Toomas Rõõm, Johan Viirok, Laur Peedu +17
Using THz spectroscopy, we show that the spin-wave spectrum of multiferroic BiFeO in its high-field canted antiferromagnetic state is well described by a spin model that violat…
Direct determination of exchange parameters in Cs2CuBr4 and Cs2CuCl4: high-field ESR studies
S. A. Zvyagin, D. Kamenskyi, M. Ozerov +12
Spin-1/2 Heisenberg antiferromagnets CsCuCl and CsCuBr with distorted triangular-lattice structures are studied by means of electron spin resonance spectroscopy in…
Magnetic excitations in the spin-1/2 triangular-lattice antiferromagnet CsCuBr
S. A. Zvyagin, M. Ozerov, D. Kamenskyi +8
We report on high-field electron spin resonance (ESR) studies of magnetic excitations in the spin-1/2 triangular-lattice antiferromagnet CsCuBr. Frequency-field diagrams of…
Magnetic excitations in the spin-1 anisotropic antiferromagnet
C. Psaroudaki, S. A. Zvyagin, J. Krzystek +3
The spin-1 anisotropic antiferromagnet NiCl_2-4SC(NH2)_2 exhibits a field-induced quantum phase transition that is formally analogous to Bose-Einstein condensation. Here we present…
Magnetic properties of the Haldane-gap material NENB
E. Cizmar, M. Ozerov, O. Ignatchik +9
Results of magnetization and high-field ESR studies of the new spin-1 Haldane-chain material [Ni(C2H8N2)2NO2](BF4) (NENB) are reported. A definite signature of the Haldane state in…
Magnetic Excitations in the Spin-1 Anisotropic Heisenberg Antiferromagnetic Chain System NiCl-4SC(NH)
S. A. Zvyagin, J. Wosnitza, C. D. Batista +7
NiCl-4SC(NH) (DTN) is a quantum S=1 chain system with strong easy-pane anisotropy and a new candidate for the Bose-Einstein condensation of the spin degrees of freedom.…