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Quantum and classical glass transitions in LiHoxY1-xF4

Ancona-Torres, C; Silevitch, DM; Aeppli, G; Rosenbaum, TF; (2008) Quantum and classical glass transitions in LiHoxY1-xF4. PHYS REV LETT , 101 (5) , Article 057201. 10.1103/PhysRevLett.101.057201. Green open access

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Abstract

When performed in the proper low-field, low-frequency limits, measurements of the dynamics and the nonlinear susceptibility in the model Ising magnet in a transverse field LiHoxY1-xF4 prove the existence of a spin-glass transition for x=0.167 and 0.198. The classical behavior tracks for the two concentrations, but the behavior in the quantum regime at large transverse fields differs because of the competing effects of quantum entanglement and random fields.

Type: Article
Title: Quantum and classical glass transitions in LiHoxY1-xF4
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.101.057201
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.101.057201
Language: English
Additional information: © 2008 The American Physical Society
Keywords: ISING SPIN-GLASS, CRITICAL-BEHAVIOR, GRIFFITHS SINGULARITIES, DISORDERED MAGNET, TRANSVERSE-FIELD, FERROMAGNET, PHASE, MODEL
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/137311
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