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Excitation spectra and ground state properties of the layered spin-1/2 frustrated antiferromagnets Cs_2CuCl_4 and Cs_2CuBr_4
John O. Fjaerestad, Weihong Zheng, Rajiv R. P. Singh +2
We use series expansion methods to study ground- and excited-state properties in the helically ordered phase of spin-1/2 frustrated antiferromagnets on an anisotropic triangular la…
Cs NMR investigation of 2D frustrated Heisenberg antiferromagnet, CsCuCl
M. -A. Vachon, W. Kundhikanjana, A. Straub +5
We report Cs nuclear magnetic resonance (NMR) measurements on the 2D frustrated Heisenberg antiferromagnet CsCuCl down to 2 K and up to 15 T. We show that C…
Excitation spectra of the spin-1/2 triangular-lattice Heisenberg antiferromagnet
Weihong Zheng, John O. Fjaerestad, Rajiv R. P. Singh +2
We use series expansion methods to calculate the dispersion relation of the one-magnon excitations for the spin-1/2 triangular-lattice nearest-neighbor Heisenberg antiferromagnet a…
Magnetic phase transitions in the two-dimensional frustrated quantum antiferromagnet Cs2CuCl4
Y. Tokiwa, T. Radu, R. Coldea +3
We report magnetization and specific heat measurements in the 2D frustrated spin-1/2 Heisenberg antiferromagnet Cs2CuCl4 at temperatures down to 0.05 K and high magnetic fields up…