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arXiv · 0907.4168

Quantum Heisenberg antiferromagnetic chains with exchange and single--ion anisotropies

D. Peters·I. P. Mc Culloch·W. Selke
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Abstract

Using density matrix renormalization group calculations, ground state properties of the spin-1 Heisenberg chain with exchange and quadratic single-ion anisotropies in an external field are studied, for special choices of the two kinds of anisotropies. In particular, the phase diagram includes antiferromagnetic, spin-liquid (or spin-flop), (10), and supersolid (or biconical) phases. Especially, new features of the spin-liquid and supersolid phases are discussed. Properties of the quantum chains are compared to those of corresponding classical spin chains.

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D. Peters, I. P. Mc Culloch, W. Selke. 2009-07-23. Quantum Heisenberg antiferromagnetic chains with exchange and single--ion anisotropies. https://doi.org/10.1088/1742-6596%2F200%2F2%2F022046

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