The effect of thermal anisotropies during crystallization in phase-change recording media

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The effect of thermal anisotropies during crystallization in phase-change recording media

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dc.contributor.author Belmont, M. R. en_US
dc.contributor.author Aziz, Mustafa M. en_US
dc.contributor.author Wright, C. David en_US
dc.date.accessioned 2012-09-28T18:18:30Z en_US
dc.date.accessioned 2013-03-20T12:20:59Z
dc.date.issued 2008 en_US
dc.description.abstract The problem discussed is the significance of anisotropies in the thermal parameters of different phases of phase-change materials as used for data storage purposes during recording. The particular phase change in interest is from the amorphous-to-crystalline state. Applying the method of correlation moment analysis produced upper estimators for the time dependence of the width of the crystalline mark and the time at which phase change ceases based on the heat flow process alone. These upper estimators are closed-form analytical expressions that can be used to estimate the recording resolution for any general spatial profile of initial temperature in the medium. This analysis showed that, up to a first order, the specific heat anisotropies have considerably less influence on the heat flow than the thermal conductivity differences. In general, for the material parameters used in phase-change data storage applications, the theory showed that the anisotropy in thermal parameters can be neglected. (C) 2008 American Institute of Physics. en_US
dc.identifier.citation Vol. 104 (4), article 044901 en_US
dc.identifier.doi 10.1063/1.2968447 en_US
dc.identifier.uri http://hdl.handle.net/10036/3803 en_US
dc.language.iso EN en_US
dc.publisher American Institute of Physics en_US
dc.relation.url http://dx.doi.org/10.1063/1.2968447 en_US
dc.subject laser-induced crystallization en_US
dc.subject GE2SB2TE5 films en_US
dc.subject thin films en_US
dc.subject transformations en_US
dc.subject resistance en_US
dc.subject memory en_US
dc.title The effect of thermal anisotropies during crystallization in phase-change recording media en_US
dc.date.available 2012-09-28T18:18:30Z en_US
dc.date.available 2013-03-20T12:20:59Z
dc.identifier.issn 0021-8979 en_US
exeter.article-number 044901 en_US
exeter.contacts.depositing-owner-email Aziz, Mustafa <M.M.Aziz@exeter.ac.uk> en_US
exeter.contacts.owner-email Wright, Christopher <David.Wright@exeter.ac.uk> en_US
exeter.contacts.owner-email Belmont, Michael <M.R.Belmont@exeter.ac.uk> en_US
exeter.contacts.owner-email Aziz, Mustafa <M.M.Aziz@exeter.ac.uk> en_US
dc.description types: Article en_US
dc.description Copyright © 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics 104 (2008) and may be found at http://dx.doi.org/10.1063/1.2968447 en_US
dc.identifier.journal Journal of Applied Physics en_US


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