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http://hdl.handle.net/1843/54914| Tipo: | Artigo de Periódico |
| Título: | Phase transitions of the frustrated bilayer spin one XY model |
| Autor(es): | Antônio Sérgio Teixeira Pires |
| Resumen: | 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. |
| Asunto: | Antiferromagnetismo |
| Idioma: | eng |
| País: | Brasil |
| Editor: | Universidade Federal de Minas Gerais |
| Sigla da Institución: | UFMG |
| Departamento: | ICX - DEPARTAMENTO DE FÍSICA |
| Tipo de acceso: | Acesso Restrito |
| Identificador DOI: | https://doi.org/10.1016/j.jmmm.2017.12.099 |
| URI: | http://hdl.handle.net/1843/54914 |
| Fecha del documento: | 2018 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S0304885317330585 |
| metadata.dc.relation.ispartof: | Journal of Magnetism and Magnetic Materials |
| Aparece en las colecciones: | Artigo de Periódico |
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