Search:
Computing and Library Services - delivering an inspiring information environment

Generalized Spin-Glass Relaxation

Pickup, R., Cywinski, R., Pappas, C., Farago, B. and Fouquet, P. (2009) Generalized Spin-Glass Relaxation. Physical Review Letters, 102 (9). 097202. ISSN 0031-9007

Metadata only available from this repository.

Abstract

Spin relaxation close to the glass temperature of Cu̲ Mn and Au̲ Fe spin glasses is shown, by neutron spin echo, to follow a generalized exponential function which explicitly introduces hierarchically constrained dynamics and macroscopic interactions. The interaction parameter is directly related to the normalized Tsallis nonextensive entropy parameter q and exhibits universal scaling with reduced temperature. At the glass temperature q=5/3 corresponding, within Tsallis’ q statistics, to a mathematically defined critical value for the onset of strong disorder and nonlinear dynamics

Item Type: Article
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Schools: School of Applied Sciences
Related URLs:
Depositing User: Sara Taylor
Date Deposited: 23 Feb 2012 09:20
Last Modified: 23 Feb 2012 09:20
URI: http://eprints.hud.ac.uk/id/eprint/12830

Item control for Repository Staff only:

View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©