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Observation of shallow-donor muonium in Ga2O3: evidence for hydrogen-induced conductivity
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King, P. D. C., McKenzie, I. and Veal, T. D. (Tim D.) (2010) Observation of shallow-donor muonium in Ga2O3: evidence for hydrogen-induced conductivity. Applied Physics Letters, Vol.96 (No.6). Article: 062110. doi:10.1063/1.3309694 ISSN 0003-6951.
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Official URL: http://dx.doi.org/10.1063/1.3309694
Abstract
The electrical nature of muonium in the transparent conducting oxide material Ga2O3 is investigated via muon-spin rotation and relaxation spectroscopy. It is found to be a shallow donor, with an effective donor depth of 15 < E-D < 30 meV and a hyperfine splitting of 0.13 +/- 0.01 MHz. This is in contrast to the deep level observed in the majority of semiconductors but supports the recent suggestion that muonium should be a shallow donor across the class of transparent conducting oxides. These observations suggest that hydrogen will also be a shallow donor in Ga2O3, with important implications both for unintentional conductivity and deliberate n-type doping of this material.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Applied Physics Letters | ||||
Publisher: | American Institute of Physics | ||||
ISSN: | 0003-6951 | ||||
Official Date: | 8 February 2010 | ||||
Dates: |
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Volume: | Vol.96 | ||||
Number: | No.6 | ||||
Number of Pages: | 3 | ||||
Page Range: | Article: 062110 | ||||
DOI: | 10.1063/1.3309694 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Science and Technology Facilities Council (Great Britain) (STFC) | ||||
Grant number: | EP/G004447/1 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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