Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization

We investigate elastic deformations of spin S = 1/2 antiferromagnetic J₁−J₂ Heisenberg chains, at M = 1/3 magnetization, coupled to phonons in the adiabatic approximation. Using a bosonization approach we predict the existence of nonhomogeneous trimerized magnetoelastic phases. A rich ground state p...

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Detalles Bibliográficos
Autores principales: Rosales, Héctor Diego, Rossini, Gerardo Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Exactas
Física
Physics
elastic deformations
antiferromagnetic chains
bosonization
magnetization
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126211
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-126211
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
Physics
elastic deformations
antiferromagnetic chains
bosonization
magnetization
spellingShingle Ciencias Exactas
Física
Physics
elastic deformations
antiferromagnetic chains
bosonization
magnetization
Rosales, Héctor Diego
Rossini, Gerardo Luis
Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization
topic_facet Ciencias Exactas
Física
Physics
elastic deformations
antiferromagnetic chains
bosonization
magnetization
description We investigate elastic deformations of spin S = 1/2 antiferromagnetic J₁−J₂ Heisenberg chains, at M = 1/3 magnetization, coupled to phonons in the adiabatic approximation. Using a bosonization approach we predict the existence of nonhomogeneous trimerized magnetoelastic phases. A rich ground state phase diagram is found, including classical and quantum plateau states for the magnetic sector as well as inequivalent lattice deformations within each magnetic phase. The analytical results are supported by exact diagonalization of small clusters.
format Articulo
Articulo
author Rosales, Héctor Diego
Rossini, Gerardo Luis
author_facet Rosales, Héctor Diego
Rossini, Gerardo Luis
author_sort Rosales, Héctor Diego
title Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization
title_short Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization
title_full Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization
title_fullStr Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization
title_full_unstemmed Spin-Peierls-like phases in magnetoelastic J₁−J₂ antiferromagnetic chains at 1/3 magnetization
title_sort spin-peierls-like phases in magnetoelastic j₁−j₂ antiferromagnetic chains at 1/3 magnetization
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/126211
work_keys_str_mv AT rosaleshectordiego spinpeierlslikephasesinmagnetoelasticj1j2antiferromagneticchainsat13magnetization
AT rossinigerardoluis spinpeierlslikephasesinmagnetoelasticj1j2antiferromagneticchainsat13magnetization
bdutipo_str Repositorios
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