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Heat exchanges in coarsening systems

Abstract

This paper is a contribution to the understanding of the thermal properties of ageing systems where statistically independent degrees of freedom with greatly separated time scales are expected to coexist. Focusing on the prototypical case of quenched ferromagnets, where fast and slow modes can be respectively associated with fluctuations in the bulk of the coarsening domains and in their interfaces, we perform a set of numerical experiments specifically designed to compute the heat exchanges between different degrees of freedom. Our studies promote a scenario with fast modes acting as an equilibrium reservoir to which interfaces may release heat through a mechanism that allows fast and slow degrees to maintain their statistical properties independently.
Authors:
Corberi, Federico; [1]  Gonnella, Giuseppe; Piscitelli, Antonio [2] 
  1. Dipartimento di Fisica 'E R Caianiello', Università di Salerno, via Ponte don Melillo, 84084 Fisciano (Italy)
  2. Dipartimento di Fisica, Università di Bari and Istituto Nazionale di Fisica Nucleare, Sezione di Bari, via Amendola 173, 70126 Bari (Italy)
Publication Date:
Oct 15, 2011
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Statistical Mechanics; Journal Volume: 2011; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AGING; DEGREES OF FREEDOM; DESIGN; EQUILIBRIUM; FLUCTUATIONS; HEAT; INTERFACES; THERMODYNAMIC PROPERTIES
OSTI ID:
22301699
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1742-5468; Other: PII: S1742-5468(11)08683-3; TRN: GB13J7591007871
Availability:
Available from http://dx.doi.org/10.1088/1742-5468/2011/10/P10022
Submitting Site:
INIS
Size:
[17 page(s)]
Announcement Date:
Jan 30, 2015

Citation Formats

Corberi, Federico, Gonnella, Giuseppe, and Piscitelli, Antonio. Heat exchanges in coarsening systems. United Kingdom: N. p., 2011. Web. doi:10.1088/1742-5468/2011/10/P10022.
Corberi, Federico, Gonnella, Giuseppe, & Piscitelli, Antonio. Heat exchanges in coarsening systems. United Kingdom. doi:10.1088/1742-5468/2011/10/P10022.
Corberi, Federico, Gonnella, Giuseppe, and Piscitelli, Antonio. 2011. "Heat exchanges in coarsening systems." United Kingdom. doi:10.1088/1742-5468/2011/10/P10022. https://www.osti.gov/servlets/purl/10.1088/1742-5468/2011/10/P10022.
@misc{etde_22301699,
title = {Heat exchanges in coarsening systems}
author = {Corberi, Federico, Gonnella, Giuseppe, and Piscitelli, Antonio}
abstractNote = {This paper is a contribution to the understanding of the thermal properties of ageing systems where statistically independent degrees of freedom with greatly separated time scales are expected to coexist. Focusing on the prototypical case of quenched ferromagnets, where fast and slow modes can be respectively associated with fluctuations in the bulk of the coarsening domains and in their interfaces, we perform a set of numerical experiments specifically designed to compute the heat exchanges between different degrees of freedom. Our studies promote a scenario with fast modes acting as an equilibrium reservoir to which interfaces may release heat through a mechanism that allows fast and slow degrees to maintain their statistical properties independently.}
doi = {10.1088/1742-5468/2011/10/P10022}
journal = {Journal of Statistical Mechanics}
issue = {10}
volume = {2011}
journal type = {AC}
place = {United Kingdom}
year = {2011}
month = {Oct}
}