Logarithmic relaxation in radiation-amorphized zircon

Trachenko, K. and Brazhkin, V. V. and Tsiok, O. B. and Dove, M. T. and Salje, E. K. H. (2007) Logarithmic relaxation in radiation-amorphized zircon. Physical Review B, 76. 012103. DOI https://doi.org/10.1103/PhysRevB.76.012103

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We study relaxation under pressure of a radiation-amorphized material. The volume of zircon, ZrSiO4, amorphized by natural radiation over geologic times, was measured under high pressure using the precise strain-gauge technique. The volume shows logarithmic relaxation as a function of time. We compare the measured relaxation with the logarithmic relaxation of other different systems, and discuss the commonality of behavior in these systems in terms of local relaxation events that relax stress on a microscopic scale. We propose that logarithmic relaxation arises as the result of the elastic feed-forward interaction mechanism between local relaxation events.

Item Type: Article
Uncontrolled Keywords: 2007 AREP 2007 P IA55 kot;
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Physical Review B
Volume: 76
Page Range: 012103
Identification Number: https://doi.org/10.1103/PhysRevB.76.012103
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/747

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