Tunneling and interaction effects in two-level systems in glasses studied by atomistic simulations

Trachenko, K. and Turlakov, M. (2006) Tunneling and interaction effects in two-level systems in glasses studied by atomistic simulations. Physical Review B, 73 (1). Art. no. 012203. DOI 10.1103/PhysRevB.73.012203

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Abstract

We use molecular dynamics simulations to characterize low-energy two-level systems (TLS) in glasses. We estimate that in silica glass, TLS parameters are broadly distributed in such a way that the tunnel splitting is in the 0.01–1 K range. We also observe simultaneous atomic jumps in different TLS below 30 K and suggest that this is evidence of strong interaction between TLS below this temperature scale.

Item Type: Article
Additional Information: 012203
Uncontrolled Keywords: 2006 AREP 2006 P IA50
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Physical Review B
Volume: 73
Page Range: Art. no. 012203
Identification Number: 10.1103/PhysRevB.73.012203
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:04
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/751

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