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7 papers · 2 filters
High-field magnetic resonance of spinons and magnons in a triangular lattice S=1/2 antiferromagnet Cs2CuCl4
A. I. Smirnov, T. A. Soldatov, K. Yu. Povarov +1
The electron spin resonance doublet indicating the width of the two spinon continuum in a spin-1/2 triangular-lattice Heisenberg antiferromagnet Cs2CuCl4 was studied in high magnet…
Elementary Excitations in the Symmetric Spin--Orbital Model
M. Y. Kagan, K. I. Kugel, A. V. Mikheyenkov +1
Possible types of elementary excitations in the symmetric spin-orbital model on the a square lattice are analyzed using a spherically symmetric self-consistent approach. The excita…
Quantum spin chains with frustration due to Dzyaloshinskii-Moriya interactions
Manuel Hälg, Wolfram E. A. Lorenz, Kirill Yu. Povarov +3
The properties of two quantum spin chain materials, KCuSOCl and KCuSOBr, are studied by a variety of experimental techniques, including bulk measurements, n…
Magnetic structure and domain conversion of quasi-2D frustrated antiferromagnet CuCrO2 probed by NMR
Yu. A. Sakhratov, L. E. Svistov, P. L. Kuhns +2
We have carried out 63,65Cu NMR spectra measurements in magnetic field up to about 15.5 T on single crystal of a multiferroic triangular-lattice antiferromagnet CuCrO2. The measure…
The tunable quantum spin ladder Cu(Qnx)(ClBr)
K. Yu. Povarov, W. E. A. Lorenz, F. Xiao +3
We report magnetic, specific heat and ESR measurements on a series of spin ladder compounds Cu(Qnx)(ClBr). Down to K all the observables can be…
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…