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Density-functional theory study of Au, Ag and Cu defects in germanium

Lookup NU author(s): Professor Patrick Briddon


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Gold, silver and copper defects in germanium are modeled using density functional theory. The structures and electrical properties of the substitutional metals are calculated in excellent agreement with experiment. Interstitial Au, Ag and Cu are found to be shallow donors, in disagreement with a previous assignment of Cui to a hole trap in the lower half of the gap. Substitutional-interstitial metal (M-i-M-s) pairs and metal-vacancy pairs (MS-V) are also investigated. (C) 2008 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Carvalho A, Coutinho J, Jones R, Silva E, Oberg S, Briddon PR

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Materials Science in Semiconductor Processing: International Symposium on Beyond Silicon Technology

Year of Conference: 2009

Pages: 340-343

ISSN: 1369-8001

Publisher: Pergamon


DOI: 10.1016/j.mssp.2008.10.007

Library holdings: Search Newcastle University Library for this item

ISBN: 18734081