Influence of optical excitation on the precession signature of charged muonium

We report studies of the precession signatures of Mu BC + in Si from 200 K to room temperature under optical excitation. The illumination results in an enhanced relaxation of the signal. In the temperature range from 200 to 260 K, the relaxation is primarily due to the Mu BC + ↔ Mu BC 0 process. Abo...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2007-12, Vol.401, p.635-638
Main Authors: Fan, I., Chow, K.H., Scheuermann, R., Hitti, B., MacFarlane, W.A., Schultz, B.E., Mansour, A.I., Jung, J., Lichti, R.L.
Format: Article
Language:English
Subjects:
Charge-exchange
Muon spin rotation/relaxation/resonance
Muonium
Photoexcitation
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Summary:We report studies of the precession signatures of Mu BC + in Si from 200 K to room temperature under optical excitation. The illumination results in an enhanced relaxation of the signal. In the temperature range from 200 to 260 K, the relaxation is primarily due to the Mu BC + ↔ Mu BC 0 process. Above 260 K, the Mu BC + ↔ Mu T 0 dynamics are responsible for the observed relaxation. This charge cycling model also describes the longitudinal relaxation rates.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2007.09.040