Monopole matter from magnetoelastic coupling in the Ising pyrochlore

Ising models on a pyrochlore oxide lattice have become associated with spin ice materials and magnetic monopoles. Ever more often, effects connecting magnetic and elastic degrees of freedom are reported on these and other related frustrated materials. Here we extend a spin-ice Hamiltonian to include...

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Detalles Bibliográficos
Autores principales: Slobinsky, Demian Gustavo, Pili, Lucas, Baglietto, Gabriel, Grigera, Santiago Andrés, Borzi, Rodolfo Alberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Física
Ising models
MeSI Hamiltonian
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/118960
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-118960
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ising models
MeSI Hamiltonian
spellingShingle Física
Ising models
MeSI Hamiltonian
Slobinsky, Demian Gustavo
Pili, Lucas
Baglietto, Gabriel
Grigera, Santiago Andrés
Borzi, Rodolfo Alberto
Monopole matter from magnetoelastic coupling in the Ising pyrochlore
topic_facet Física
Ising models
MeSI Hamiltonian
description Ising models on a pyrochlore oxide lattice have become associated with spin ice materials and magnetic monopoles. Ever more often, effects connecting magnetic and elastic degrees of freedom are reported on these and other related frustrated materials. Here we extend a spin-ice Hamiltonian to include coupling between spins and the O−2 ions mediating superexchange; we call it the magnetoelastic spin ice model (MeSI). There has been a long search for a model in which monopoles would spontaneously become the building blocks of new ground-states: the MeSI Hamiltonian is such a model. In spite of its simplicity and classical approach, it describes the double-layered monopole crystal observed in Tb2Ti2O7. Additionally, the dipolar electric moment of single monopoles emerges as a probe for magnetism. As an example we show that some Coulomb phases could, in principle, be detected through pinch points associated with O−2-ion displacements.
format Articulo
Articulo
author Slobinsky, Demian Gustavo
Pili, Lucas
Baglietto, Gabriel
Grigera, Santiago Andrés
Borzi, Rodolfo Alberto
author_facet Slobinsky, Demian Gustavo
Pili, Lucas
Baglietto, Gabriel
Grigera, Santiago Andrés
Borzi, Rodolfo Alberto
author_sort Slobinsky, Demian Gustavo
title Monopole matter from magnetoelastic coupling in the Ising pyrochlore
title_short Monopole matter from magnetoelastic coupling in the Ising pyrochlore
title_full Monopole matter from magnetoelastic coupling in the Ising pyrochlore
title_fullStr Monopole matter from magnetoelastic coupling in the Ising pyrochlore
title_full_unstemmed Monopole matter from magnetoelastic coupling in the Ising pyrochlore
title_sort monopole matter from magnetoelastic coupling in the ising pyrochlore
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/118960
work_keys_str_mv AT slobinskydemiangustavo monopolematterfrommagnetoelasticcouplingintheisingpyrochlore
AT pililucas monopolematterfrommagnetoelasticcouplingintheisingpyrochlore
AT bagliettogabriel monopolematterfrommagnetoelasticcouplingintheisingpyrochlore
AT grigerasantiagoandres monopolematterfrommagnetoelasticcouplingintheisingpyrochlore
AT borzirodolfoalberto monopolematterfrommagnetoelasticcouplingintheisingpyrochlore
bdutipo_str Repositorios
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