Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/54914| Type: | Artigo de Periódico |
| Title: | Phase transitions of the frustrated bilayer spin one XY model |
| Authors: | Antônio Sérgio Teixeira Pires |
| Abstract: | In this paper we use the SU(3) Schwinger boson representation, followed by a mean field decoupling, to study the disordered phases of the bilayer spin one quantum XY antiferromagnet on a square lattice with next near neighbor and a single ion anisotropy. The phase diagram at zero temperature is obtained. The ratio between the interlayer to the intralayer near neighbor J1 exchange interactions exhibits a quantum phase transition at a critical ratio that separates the small- η Nèel phase from the large η quantum disordered paramagnet. The effect of next near neighbor interactions is discussed. The Neel phase is studied using a self consistent harmonic approximation that takes into account topological effects. |
| Subject: | Antiferromagnetismo |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | https://doi.org/10.1016/j.jmmm.2017.12.099 |
| URI: | http://hdl.handle.net/1843/54914 |
| Issue Date: | 2018 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S0304885317330585 |
| metadata.dc.relation.ispartof: | Journal of Magnetism and Magnetic Materials |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.