Quantum Phase Transition on a Spin-One Spatially Anisotropic Frustrated Zigzag Square Lattice |
| |
| Authors: | A. S. T. Pires |
| |
| Affiliation: | 1.Departamento de Fisica,Universidade Federal de Minas Gerais,Belo Horizonte,Brazil |
| |
| Abstract: | We study quantum phase transitions in the easy-plane spin-one Heisenberg model on a zigzag square lattice with next-nearest-neighbor interactions at zero temperature using the SU(3) Schwinger boson formalism in a mean field approximation. We present the phase diagram and the dispersion relation for several values of the parameters. A magnetically disordered region in the phase diagram is found, even when the anisotropy parameter vanishes. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
