Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges
The forging of strong correlations on decreasing temperature can take place without the arousal of conventional order. If this happens, as in some geometrically frustrated magnets, disorder can be a phenomenon more interesting than order itself. A Coulomb phase, for example, has critical-like pair-s...
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| Autores principales: | , , |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2019
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/125566 |
| Aporte de: |
| id |
I19-R120-10915-125566 |
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| 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 spin ice magnetic monopoles spin liquid |
| spellingShingle |
Ciencias Exactas Física spin ice magnetic monopoles spin liquid Slobinsky, Demian Gustavo Pili, Lucas Borzi, Rodolfo Alberto Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges |
| topic_facet |
Ciencias Exactas Física spin ice magnetic monopoles spin liquid |
| description |
The forging of strong correlations on decreasing temperature can take place without the arousal of conventional order. If this happens, as in some geometrically frustrated magnets, disorder can be a phenomenon more interesting than order itself. A Coulomb phase, for example, has critical-like pair-spin correlations, leading to neutron scattering pinch points and emergent electromagnetism. Here we present a new instance of disorder in an Ising pyrochlore lattice: the Polarized Monopole Liquid (PML), a dense monopole fluid with pinch points in the magnetic charge-pair correlations. It is a phase of "monopole matter" never considered before which, in principle, can be stabilized in real materials using a magnetic field and uniaxial stress along the [100] direction. To explain how the monopole correlations arise, we show that the PML is a Coulomb phase in which spin fluctuations cannot be assigned either to monopoles or to internal magnetic moments, but necessarily comprehend both degrees of freedom. We develop a simple but nontrivial method to Helmholtz decompose the spin field into a divergenceless and a divergenceful part in magnetic charge disordered pyrochlores that shows the appearance of pinch points associated to the divergenceful component in places where Bragg peaks are observed for the "all-in/all-out" antiferromagnet. |
| format |
Articulo Preprint |
| author |
Slobinsky, Demian Gustavo Pili, Lucas Borzi, Rodolfo Alberto |
| author_facet |
Slobinsky, Demian Gustavo Pili, Lucas Borzi, Rodolfo Alberto |
| author_sort |
Slobinsky, Demian Gustavo |
| title |
Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges |
| title_short |
Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges |
| title_full |
Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges |
| title_fullStr |
Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges |
| title_full_unstemmed |
Polarized monopole liquid: A Coulomb phase in a fluid of magnetic charges |
| title_sort |
polarized monopole liquid: a coulomb phase in a fluid of magnetic charges |
| publishDate |
2019 |
| url |
http://sedici.unlp.edu.ar/handle/10915/125566 |
| work_keys_str_mv |
AT slobinskydemiangustavo polarizedmonopoleliquidacoulombphaseinafluidofmagneticcharges AT pililucas polarizedmonopoleliquidacoulombphaseinafluidofmagneticcharges AT borzirodolfoalberto polarizedmonopoleliquidacoulombphaseinafluidofmagneticcharges |
| bdutipo_str |
Repositorios |
| _version_ |
1764820451877453825 |