Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets

We investigate the magnetic properties of quasi-one-dimensional quantum spin-S antiferromagnets. We use a combination of analytical and numerical techniques to study the presence of plateaux in the magnetization curve. The analytical technique consists in a path integral formulation in terms of cohe...

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Autores principales: Lamas, Carlos Alberto, Capponi, S., Pujol, Pierre
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Exactas
Física
Magnetismo
Teoría Cuántica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/38912
http://arxiv.org/abs/1105.3527
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-38912
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Magnetismo
Teoría Cuántica
spellingShingle Ciencias Exactas
Física
Magnetismo
Teoría Cuántica
Lamas, Carlos Alberto
Capponi, S.
Pujol, Pierre
Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
topic_facet Ciencias Exactas
Física
Magnetismo
Teoría Cuántica
description We investigate the magnetic properties of quasi-one-dimensional quantum spin-S antiferromagnets. We use a combination of analytical and numerical techniques to study the presence of plateaux in the magnetization curve. The analytical technique consists in a path integral formulation in terms of coherent states. This technique can be extended to the presence of doping and has the advantage of a much better control for large spins than the usual bosonization technique. We discuss the appearance of doping-dependent plateaux in the magnetization curves for spin-S chains and ladders. The analytical results are complemented by a density matrix renormalization group (DMRG) study for a trimerized spin-1/2 and anisotropic spin-3/2 doped chains.
format Articulo
Preprint
author Lamas, Carlos Alberto
Capponi, S.
Pujol, Pierre
author_facet Lamas, Carlos Alberto
Capponi, S.
Pujol, Pierre
author_sort Lamas, Carlos Alberto
title Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
title_short Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
title_full Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
title_fullStr Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
title_full_unstemmed Combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
title_sort combined analytical and numerical approach to study magnetization plateaux in doped quasi-one-dimensional antiferromagnets
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/38912
http://arxiv.org/abs/1105.3527
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AT capponis combinedanalyticalandnumericalapproachtostudymagnetizationplateauxindopedquasionedimensionalantiferromagnets
AT pujolpierre combinedanalyticalandnumericalapproachtostudymagnetizationplateauxindopedquasionedimensionalantiferromagnets
bdutipo_str Repositorios
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