Ferromagnetic Coulomb phase in classical spin ice
Spin ice is a frustrated magnetic system that at low temperatures exhibits a Coulomb phase, a classical spin liquid with topological order and deconfined excitations. This work establishes the presence of a Coulomb phase with coexisting ferromagnetic order in a microscopic model of classical spin ic...
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| Format: | Article |
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American Physical Society
2015
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| Online Access: | https://eprints.nottingham.ac.uk/34678/ |
| _version_ | 1848794909553721344 |
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| author | Powell, Stephen |
| author_facet | Powell, Stephen |
| author_sort | Powell, Stephen |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Spin ice is a frustrated magnetic system that at low temperatures exhibits a Coulomb phase, a classical spin liquid with topological order and deconfined excitations. This work establishes the presence of a Coulomb phase with coexisting ferromagnetic order in a microscopic model of classical spin ice subject to uniaxial lattice distortion. General theoretical arguments are presented for the presence of such a phase, and its existence is confirmed using Monte Carlo results. This example is used to illustrate generic properties of spin liquids with magnetic order, including deconfinement of monopoles, signatures in the neutron-scattering structure factor, and critical behavior at phase transitions. An analogous phase, a superfluid with spontaneously broken particle–hole symmetry, is demonstrated in a model of hard-core lattice bosons, related to spin ice through the quantum– classical correspondence |
| first_indexed | 2025-11-14T19:23:41Z |
| format | Article |
| id | nottingham-34678 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:23:41Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-346782020-05-04T17:03:54Z https://eprints.nottingham.ac.uk/34678/ Ferromagnetic Coulomb phase in classical spin ice Powell, Stephen Spin ice is a frustrated magnetic system that at low temperatures exhibits a Coulomb phase, a classical spin liquid with topological order and deconfined excitations. This work establishes the presence of a Coulomb phase with coexisting ferromagnetic order in a microscopic model of classical spin ice subject to uniaxial lattice distortion. General theoretical arguments are presented for the presence of such a phase, and its existence is confirmed using Monte Carlo results. This example is used to illustrate generic properties of spin liquids with magnetic order, including deconfinement of monopoles, signatures in the neutron-scattering structure factor, and critical behavior at phase transitions. An analogous phase, a superfluid with spontaneously broken particle–hole symmetry, is demonstrated in a model of hard-core lattice bosons, related to spin ice through the quantum– classical correspondence American Physical Society 2015-03-27 Article PeerReviewed Powell, Stephen (2015) Ferromagnetic Coulomb phase in classical spin ice. Physical Review B, 91 (9). 094431/1-094431/11. ISSN 2469-9969 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.094431 doi:10.1103/PhysRevB.91.094431 doi:10.1103/PhysRevB.91.094431 |
| spellingShingle | Powell, Stephen Ferromagnetic Coulomb phase in classical spin ice |
| title | Ferromagnetic Coulomb phase in classical spin ice |
| title_full | Ferromagnetic Coulomb phase in classical spin ice |
| title_fullStr | Ferromagnetic Coulomb phase in classical spin ice |
| title_full_unstemmed | Ferromagnetic Coulomb phase in classical spin ice |
| title_short | Ferromagnetic Coulomb phase in classical spin ice |
| title_sort | ferromagnetic coulomb phase in classical spin ice |
| url | https://eprints.nottingham.ac.uk/34678/ https://eprints.nottingham.ac.uk/34678/ https://eprints.nottingham.ac.uk/34678/ |