The multiple symmetry sustaining phase transitions of spin ice
| Autor: | C. T. Suen, Ludovic Berthier, P. C. W. Holdsworth, V. Raban |
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| Přispěvatelé: | Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Phase transition Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics Magnetic monopole FOS: Physical sciences Charge (physics) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Symmetry (physics) Crystal Spin ice Condensed Matter - Strongly Correlated Electrons Magnet 0103 physical sciences [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el] 010306 general physics 0210 nano-technology Phase diagram |
| Zdroj: | Physical Review B: Condensed Matter and Materials Physics (1998-2015) Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 99, pp.224425. ⟨10.1103/PhysRevB.99.224425⟩ |
| ISSN: | 1098-0121 1550-235X |
| DOI: | 10.1103/PhysRevB.99.224425⟩ |
| Popis: | We present the full phase diagram of the dumbbell model of spin ice as a function of temperature, chemical potential and staggered chemical potential which breaks the translational lattice symmetry in favour of charge crystal ordering. We observe a double winged structure with five possible phases, monopole fluid (spin ice), fragmented single monopole crystal phases and double monopole crystal, the zinc blend structure. Our model provides a skeleton for liquid-liquid phase transitions and for the winged structures observed for itinerant magnets under pressure and external field. We relate our results to recent experiments on Ho$_2$Ir$_2$O$_7$ and propose a wide ranging set of new experiments that exploit the phase diagram, including high pressure protocols, dynamical scaling of Kibble-Zurek form and universal violations of the fluctuation-dissipation theorem. Comment: 14 pages, 14 figures |
| Databáze: | OpenAIRE |
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