Early ⁸Li⁺ β-NMR investigations in GaAs and Ge

DOIResolve DOI: http://doi.org/10.1016/j.physb.2005.11.120
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TypeArticle
Proceedings titlePhysica B: Condensed Matter
ConferenceProceedings of the Tenth International Conference on Muon Spin Rotation, Relaxation and Resonance, August 8-12, 2005, Oxford, UK
Volume374-375
Pages415418; # of pages: 4
Subjectbeta-NMR; GaAs; Ge; Lithium
AbstractIn this paper, we describe initial studies of the structure and dynamics associated with ⁸Li⁺ in bulk crystalline GaAs and Ge. At low temperatures in GaAs, the amplitude of the ⁸Li⁺ resonance signal at ≈3T indicates that a large fraction (at least 70%) of the Li end up in locations with cubic symmetry (i.e. the tetrahedral interstitial and substitutional sites). The linewidth of the β-NMR ⁸Li⁺ resonance increases dramatically above ≈150K, reaches a maximum at about 290?K, and decreases again. This suggests that the Li starts to change its location, probably from an interstitial to a substitutional site, at . Experiments in Ge are also described. In this sample, a narrow resonance is seen at low temperatures that is likely due to Li located at an interstitial site. Near room temperature, it appears that Li is converting to another site.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12338980
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Record identifier06df4d8f-b396-4d2a-960b-cbfffde9cfb0
Record created2009-09-11
Record modified2016-05-09
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