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RF-μSR in electric fields studies of GaP


Eshchenko, D G; Storchak, V G; Cottrell, S P (2009). RF-μSR in electric fields studies of GaP. Physica B: Condensed Matter, 404(5-7):876-879.

Abstract

We report on combined RF-μSR and electric fields (EF) μSR measurements in semi-insulating GaP. At low temperature the capture of excess carriers by a neutral muonium (Mu=μ++e-) center is suggested to be a dominant process in muonium charge dynamics. The charged muonium fraction (Mu- or Mu+) formed on the microsecond time-scale is increased with lowering the temperature. Contrary to the usually observed scenario, at T < 40 K an EF prevents formation of the final charged state.

Abstract

We report on combined RF-μSR and electric fields (EF) μSR measurements in semi-insulating GaP. At low temperature the capture of excess carriers by a neutral muonium (Mu=μ++e-) center is suggested to be a dominant process in muonium charge dynamics. The charged muonium fraction (Mu- or Mu+) formed on the microsecond time-scale is increased with lowering the temperature. Contrary to the usually observed scenario, at T < 40 K an EF prevents formation of the final charged state.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:April 2009
Deposited On:24 Apr 2009 15:03
Last Modified:17 Feb 2018 22:50
Publisher:Elsevier
ISSN:0921-4526
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.physb.2008.11.147

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