Deep muonium state in InSb: Recombination center vs. trapping center

V. G. Storchak, D. G. Eshchenko, J. H. Brewer, B. A. Aronzon, S. P. Cottrell, R. L. Lichti, A. T. Savici, Y. J Uemura

Research output: Contribution to journalConference articlepeer-review

Abstract

The bound state of an isotropic muonium atom has been detected in both n- and p-type InSb using a high-field μSR technique. The hyperfine constant obtained for this center (A=2464±1MHz) is characteristic of deep-level Mu0 centers at tetrahedral interstitial sites in other cubic semiconductors, which typically ionize above 300K. In contrast, the Mu0 center in InSb disappears above about 30K, which is more characteristic of ionization of a shallow-level impurity. The charge-state dynamics of Mu in InSb is discussed in terms of a deep trap or recombination center, rather than as electron ionization.

Original languageEnglish
Pages (from-to)387-389
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Volume374-375
DOIs
StatePublished - Mar 31 2006
Externally publishedYes
EventProceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance -
Duration: Aug 8 2005Aug 12 2005

Funding

This work was supported by the Canadian Institute for Advanced Research, NSERC of Canada, the US NSF (Supplements to DMR-9802000 and DMR-0102862) and the Royal Society of London.

FundersFunder number
National Science FoundationDMR-0102862, DMR-9802000
Canadian Institute for Advanced Research
Natural Sciences and Engineering Research Council of Canada
Royal Society

    Keywords

    • Electron ionization
    • Energy level
    • Muonium
    • Narrow-band semiconductor

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