Lookup NU author(s): Dr Sarah Olsen,
Professor Anthony O'Neill,
Professor Steve Bull
This is the final published version of an article that has been published in its final definitive form by American Institute of Physics, 2002.
For re-use rights please refer to the publisher's terms and conditions.
Author(s): Olsen SH, O'Neill AG, Bull SJ, Woods NJ, Zhang J
Publication type: Article
Publication status: Published
Journal: Journal of Applied Physics
Date deposited: 15/09/2016
ISSN (print): 0021-8979
ISSN (electronic): 1520-8850
Publisher: American Institute of Physics
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