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Antiferromagnetic Heisenberg model on anisotropic triangular lattice in the presence of magnetic field

S. Q. Shen·F. C. Zhang
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Abstract

We use Schwinger boson mean field theory to study the antiferromagnetic spin-1/2 Heisenberg model on an anisotropic triangular lattice in the presence of a uniform external magnetic field. We calculate the field dependence of the spin incommensurability in the ordered spin spiral phase, and compare the results to the recent experiments in Cs$_{2}$CuCl$_{4}$ by Coldea et al. (Phys. Rev. Lett. 86, 1335 (2001)).

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S. Q. Shen, F. C. Zhang. 2002-07-02. Antiferromagnetic Heisenberg model on anisotropic triangular lattice in the presence of magnetic field. https://doi.org/10.1103/physrevb.66.172407

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