Electric field fluctuations in the two-dimensional Coulomb fluid

Autor: Callum Gray, Steven T Bramwell, Peter C W Holdsworth

Publikováno v: New Journal of Physics, Vol 23, Iss 9, p 093039 (2021)

The structure factor for electric field correlations in the two dimensional Coulomb fluid is simulated and compared to theories of the dielectric function. Singular changes in the structure factor occur at the Berezinskii–Kosterlitz–Thouless insu

Externí odkaz: https://doaj.org/article/ed1323f413f6450aaf8f061d7efb50e8

Fragmented monopole crystal, dimer entropy, and Coulomb interactions in Dy_{2}Ir_{2}O_{7}

Autor: V. Cathelin, E. Lefrançois, J. Robert, P. C. Guruciaga, C. Paulsen, D. Prabhakaran, P. Lejay, F. Damay, J. Ollivier, B. Fåk, L. C. Chapon, R. Ballou, V. Simonet, P. C. W. Holdsworth, E. Lhotel

Publikováno v: Physical Review Research, Vol 2, Iss 3, p 032073 (2020)

Neutron scattering, specific-heat, and magnetization measurements on both powders and single crystals reveal that Dy_{2}Ir_{2}O_{7} realizes the fragmented monopole crystal state in which antiferromagnetic order and a Coulomb phase spin liquid coinha

Externí odkaz: https://doaj.org/article/b2ac8e8c881046f3975702be2d21ff05

From quantum to thermal topological-sector fluctuations of strongly interacting Bosons in a ring lattice

Autor: Tommaso Roscilde, Michael F Faulkner, Steven T Bramwell, Peter C W Holdsworth

Publikováno v: New Journal of Physics, Vol 18, Iss 7, p 075003 (2016)

Inspired by recent experiments on Bose–Einstein condensates in ring traps, we investigate the topological properties of the phase of a one-dimensional Bose field in the presence of both thermal and quantum fluctuations—the latter ones being tuned

Externí odkaz: https://doaj.org/article/51efde2b49de4f5192f6a2ee6b23344d

Fragmentation in Frustrated Magnets: A Review

Autor: P. C. W. Holdsworth, Ludovic D. C. Jaubert, E. Lhotel

Publikováno v: Journal of Low Temperature Physics
Journal of Low Temperature Physics, Springer Verlag (Germany), 2020, 201 (5-6), pp.710-737. ⟨10.1007/s10909-020-02521-3⟩
Journal of Low Temperature Physics, 2020, 201 (5-6), pp.710-737. ⟨10.1007/s10909-020-02521-3⟩

Spin liquids are exotic phases of matter that often support emergent gauge fields and quasi-particle excitations. While spin liquids are commonly known for remaining disordered, their definition has been extended to include phases with broken symmetr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6427a10fbda149b302e24de78c45af82
https://hal.archives-ouvertes.fr/hal-03032501/document

Magnetic-Moment Fragmentation and Monopole Crystallization

Autor: M. E. Brooks-Bartlett, S. T. Banks, L. D. C. Jaubert, A. Harman-Clarke, P. C. W. Holdsworth

Publikováno v: Physical Review X, Vol 4, Iss 1, p 011007 (2014)

The Coulomb phase, with its dipolar correlations and pinch-point–scattering patterns, is central to discussions of geometrically frustrated systems, from water ice to binary and mixed-valence alloys, as well as numerous examples of frustrated magne

Externí odkaz: https://doaj.org/article/9fc63f50682d4a0cac07dcbfc3eb410b