Quasi-one-dimensional anisotropic Heisenberg model in a transverse magnetic field
D. V. Dmitriev, V. Ya. Krivnov
Abstract
The phase diagram of weakly coupled XXZ chains in a transverse magnetic field is studied using the mean-field approximation for the interchain coupling and known exact results for an effective one-dimensional model. Results are applied to the quasi-one-dimensional antiferromagnet Cs2CoCl4 and the value of interchain interaction in this compound is estimated.
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