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

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

2009-07-23

arxiv.org/abs/0907.4168v1

J . Phys.: Conf. Ser. 200, 022046 (2010)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 5 figures, ICM09

Scientific paper

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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