Diffusion and trapping of positively charged muonium in InAs

Lichti, R.; Vernon, J.; Carroll, B.; Celebi, YAŞAR; King, P.; Cox, S.

doi:10.1016/j.physb.2007.09.038

Diffusion and trapping of positively charged muonium in InAs

Lichti R. L., Vernon J. E., Carroll B. R., Celebi Y. G., King P. J. C., Cox S. F. J.

PHYSICA B-CONDENSED MATTER, vol.401, pp.627-630, 2007 (SCI-Expanded, Scopus)

Publication Type: Article / Article
Volume: 401
Publication Date: 2007
Doi Number: 10.1016/j.physb.2007.09.038
Journal Name: PHYSICA B-CONDENSED MATTER
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.627-630
Istanbul University Affiliated: Yes

Abstract

Muon spin precession in weak transverse magnetic fields and zero-field muon spin depolarization data are used to characterize the Mu(+) states in p-type InAs. A low-temperature signal, assigned to the BC site, shows the onset of motion just above 150 K. Above 250 K, the Mu(+) diffusion proceeds via a different primary site, assigned to the T-v interstitial location as claimed for other III-V materials. The zero-field data indicate that Mu(+) at TA, remains stationary up to 200K. A third signal dominates at intermediate temperatures and shows a sharp peak in depolarization rate near 170 K, typical of cyclic dynamics, perhaps from bi-directional Mu(+) site transfers. (c) 2007 Elsevier B.V. All rights reserved.