Muonium diffusion dynamics in mercury oxide

• Autor(es): Piroto Duarte, J. ; Gil, J. M. ; Alberto, H. V. ; Vilão, R. C. ; Weidinger, A. ; Ayres de Campos, N. ; Cox, S. F. J. ; Lord, J. S. ; Cottrell, S. P. ; Davis, E. A.
• Data: 2006
• Identificador Persistente: http://hdl.handle.net/10316/4409
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): II-VI Semiconductors; Mercury oxide; Muonium diffusion
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

The diffusion dynamics of the neutral muonium state found in HgO is addressed in this work. We propose a hopping model for the diffusion, and use it to analyse time-domain [mu]SR data. It is found that the diffusion is an incoherent quantum process, with an activation energy of 5.2(2) meV. The analysis also points to the anti-bonding site as the best-suited candidate for the muon's localisation. http://www.sciencedirect.com/science/article/B6TVH-4J2M4HS-1/1/0aee69d505b23db9d2905a56f141093f