Mean-field theory for confinement transitions and magnetization plateaux in spin ice

Powell, Stephen (2017) Mean-field theory for confinement transitions and magnetization plateaux in spin ice. Journal of Physics A: Mathematical and Theoretical, 50 (12). p. 124001. ISSN 1751-8121

[img] PDF - Repository staff only until 20 February 2018. - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB)

Abstract

We study phase transitions in classical spin ice at nonzero magnetization, by introducing a mean-field theory designed to capture the interplay between confinement and topological constraints. The method is applied to a model of spin ice in an applied magnetic field along the [1 0 0] crystallographic direction and yields a phase diagram containing the Coulomb phase as well as a set of magnetization plateaux. We argue that the lobe structure of the phase diagram, strongly reminiscent of the Bose–Hubbard model, is generic to Coulomb spin liquids.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: https://doi.org/10.1088/1751-8121/aa5bc6
Depositing User: Eprints, Support
Date Deposited: 21 Feb 2017 11:17
Last Modified: 21 Feb 2017 13:43
URI: http://eprints.nottingham.ac.uk/id/eprint/40678

Actions (Archive Staff Only)

Edit View Edit View