Spin-1 Heisenberg antiferromagnetic chain with exchange and single-ion anisotropies

Autor:	Peters, D., McCulloch, I. P., Selke, W.
Rok vydání:	2009
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Other Condensed Matter
Zdroj:	Phys Rev B 79, 132406 (2009)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.79.132406
Popis:	Using density matrix renormalization group calculations, ground state properties of the spin-1 Heisenberg chain with exchange and single-ion anisotropies in an external field are studied. Our findings confirm and refine recent results by Sengupta and Batista, Physical Review Letters 99, 217205 (2007) (2007), on the same model applying Monte Carlo techniques. In particular, we present evidence for two types of biconical (or supersolid) and for two types of spin-flop (or superfluid) structures. Basic features of the quantum phase diagram may be interpreted qualitatively in the framework of classical spin models. Comment: Ref. 1 corrected (also in the abstract)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0901.2081 Zobrazit plný text záznamu View this record from Arxiv