Competing interactions in the XYZ model
We study the interplay between an XY anisotropy γ, exchange modulations, and an external magnetic field along the z direction in an XYZ chain using bosonization and Lanczos diagonalization techniques. We find an Ising critical line in the space of couplings which occur due to competing relevant pert...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2003 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/126413 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126413 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciencias Exactas Física anisotropy external magnetic field bosonization Lanczos diagonalization techniques |
| Sumario: | We study the interplay between an XY anisotropy γ, exchange modulations, and an external magnetic field along the z direction in an XYZ chain using bosonization and Lanczos diagonalization techniques. We find an Ising critical line in the space of couplings which occur due to competing relevant perturbations that are present. More general situations are also discussed. |
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