Spin-one Heisenberg antiferromagnetic chain with exchange and single-ion anisotropies
Spin-one Heisenberg antiferromagnetic chain with exchange and single-ion anisotropies
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 numerical and analytic results by Sengupta and Batista [Phys. Rev. Lett. 99, 217205 (2007)] on the same model. In particular, we …