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Stability and diffusivity of positively charged muonium in Si

✍ Scribed by A.I. Mansour; Z. Salman; I. Fan; P.J.C. King; B. Hitti; S.P. Cottrell; J. Jung; K.H. Chow

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 177 KB
Volume: 401-402
Category: Article
ISSN: 0921-4526
DOI: 10.1016/j.physb.2007.09.036

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✦ Synopsis

The stability and dynamics of the positively charged hydrogen pseudo-isotope muonium (Mu þ ) in heavily doped p-type Si:B was investigated using mSR (muon spin rotation/resonance/relaxation). These measurements were carried out in the absence of an applied field. Under these circumstances, the muon polarization decays, albeit slowly, since it experiences randomly oriented internal magnetic fields due to certain nuclei (e.g. 29 Si, 10 B, 11 B) in the sample. We find that at low temperatures, Mu þ is static and isolated, while above 200 K it diffuses through the lattice.

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