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Theory of nickel and nickel-hydrogen complexes in silicon
University of Exeter.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
University of Exeter.
University of Newcastle Upon Tyne.
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1995 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 75, no 14, 2734-2737 p.Article in journal (Refereed) Published
Abstract [en]

Spin-polarized local density functional cluster calculations are carried out on substitutional Ni and Ni-H2 complexes. We find that Ni- undergoes a Jahn-Teller distortion along 〈100〉 with Ni moving slightly along the cube axis. The distorted state gives b1, b2, and a1 levels in ascending order of energies within the gap in agreement with experiment. Several candidate NiH2 defects are investigated: the lowest energy structure consists of a substitutional Ni atom together with two H atoms at antibonding sites to two Si neighbors of Ni. This gives H related vibrational modes and a spin-polarized charge density close to those reported for Pt-H2.

Place, publisher, year, edition, pages
1995. Vol. 75, no 14, 2734-2737 p.
Research subject
Scientific Computing
URN: urn:nbn:se:ltu:diva-3020DOI: 10.1103/PhysRevLett.75.2734Local ID: 0c44b670-1ab7-11dd-8c59-000ea68e967bOAI: diva2:975875
Godkänd; 1995; 20080505 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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Öberg, Sven
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