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


Fan I., Chow K. H. , Hitti B., Scheuermann R., Mansour A. I. , MacFarlane W. A. , ...More

PHYSICAL REVIEW B, vol.78, no.15, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 78 Issue: 15
  • Publication Date: 2008
  • Doi Number: 10.1103/physrevb.78.153203
  • Title of Journal : PHYSICAL REVIEW B

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.