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...

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Autores principales: Arlego, Marcelo José Fabián, Cabra, Daniel Carlos, Drut, Joaquín Emiliano, Grynberg, Marcelo Daniel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126413
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