Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field

We study the interplay between disorder and a quasiperiodic coupling array in an external magnetic field in a spin-1/2 XXZ chain. A simple real space decimation argument is used to estimate the magnetization values where plateaux show up. The latter are in good agreement with exact diagonalization r...

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Detalles Bibliográficos
Autor principal: Arlego, Marcelo José Fabián
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2002
Materias:
Física
Ciencias Exactas
coupling array
magnetic field
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141097
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141097
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
coupling array
magnetic field
spellingShingle Física
Ciencias Exactas
coupling array
magnetic field
Arlego, Marcelo José Fabián
Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
topic_facet Física
Ciencias Exactas
coupling array
magnetic field
description We study the interplay between disorder and a quasiperiodic coupling array in an external magnetic field in a spin-1/2 XXZ chain. A simple real space decimation argument is used to estimate the magnetization values where plateaux show up. The latter are in good agreement with exact diagonalization results on fairly long XX chains. Spontaneous susceptibility properties are also studied, finding a logarithmic behavior similar to the homogeneously disordered case.
format Articulo
Preprint
author Arlego, Marcelo José Fabián
author_facet Arlego, Marcelo José Fabián
author_sort Arlego, Marcelo José Fabián
title Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
title_short Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
title_full Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
title_fullStr Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
title_full_unstemmed Interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
title_sort interplay between quasiperiodicity and disorder in quantum spin chains in a magnetic field
publishDate 2002
url http://sedici.unlp.edu.ar/handle/10915/141097
work_keys_str_mv AT arlegomarcelojosefabian interplaybetweenquasiperiodicityanddisorderinquantumspinchainsinamagneticfield
bdutipo_str Repositorios
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