Influence of photoexcitation on the diamagnetic muonium states in Ge studied via their precession signatures

I. Fan, K. H. Chow, B. Hitti, R. Scheuermann, A. I. Mansour, W. A. MacFarlane, B. E. Schultz, M. Egilmez, J. Jung, Y. G. Celebi, H. N. Bani-Salameh, B. R. Carroll, J. E. Vernon, and R. L. Lichti
Phys. Rev. B 78, 153203 – Published 28 October 2008

Abstract

By using photoexcitation, we unambiguously establish that the well-known diamagnetic muonium spin precession signal in Ge is in fact due to two diamagnetic states. Their temperature dependences are studied up to room temperature. The signal due to one of these states is strongly influenced by the photoexcited carriers while the other is not. The identification of these two centers is discussed.

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  • Received 3 July 2008

DOI:https://doi.org/10.1103/PhysRevB.78.153203

©2008 American Physical Society

Authors & Affiliations

I. Fan1,*, K. H. Chow1,†, B. Hitti2, R. Scheuermann3, A. I. Mansour1, W. A. MacFarlane4, B. E. Schultz1, M. Egilmez1, J. Jung1, Y. G. Celebi5, H. N. Bani-Salameh6, B. R. Carroll6, J. E. Vernon6, and R. L. Lichti6

  • 1Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2G7
  • 2TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
  • 3Paul Scherrer Institute, CH-5232 Villigen, Switzerland
  • 4Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
  • 5Department of Physics, Istanbul University, Beyazit 34459 Istanbul, Turkey
  • 6Department of Physics, Texas Tech University, Lubbock, Texas 79409-1051, USA

  • *ifan@phys.ualberta.ca
  • kimchow@phys.ualberta.ca

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Issue

Vol. 78, Iss. 15 — 15 October 2008

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