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 https://doi.org/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:	https://doi.org/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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