Encontrados 10 documentos, a visualizar página 1 de 1
Spin exchange of muonium in CdS
Gil, J. M.; Piroto Duarte, J.; Vilão, R. C.; Alberto, H. V.; Ayres de Campos, N.; Cox, S. F. J.http://www.sciencedirect.com/science/article/B6TVH-4V34D8T-7/2/3a955c2f8a5ab1c3fde448c9a1483077
Muonium in nano-crystalline II-VI semiconductors
Houtepen, A. J.; Gil, J. M.; Lord, J. S.; Liljeroth, P.; Vanmaekelbergh, D.; Alberto, H. V.; Vilão, R. C.; Piroto Duarte, J.; Ayres de Campos, N.http://www.sciencedirect.com/science/article/B6TVH-4V2NP2J-Y/2/3738c97c2d99528da5d86b4865717938
Low-energy muon [LEM] study of Zn-phthalocyanine and ZnO thin films
Alberto, H. V.; Piroto Duarte, J.; Weidinger, A.; Vilão, R. C.; Gil, J. M.; Ayres de Campos, N.; Fostiropoulos, K.; Prokscha, T.; Suter, A.http://www.sciencedirect.com/science/article/B6TVH-4V2NP2J-14/2/e2844eb805cd79148fe2c51116014ae6
Delayed electron capture and Mu- formation in ZnSe
Vilão, R. C.; Gil, J. M.; Weidinger, A.; Alberto, H. V.; Piroto Duarte, J.; Costa, B. F. O.; Ayres de Campos, N.; Lichti, R. L.; Chow, K. H.http://www.sciencedirect.com/science/article/B6TVH-4V2NP2J-1R/2/ae8c94d2ee3229b6fe7881d93d1a64eb
Detailed hyperfine structure of muoniated radicals in planar phthalocyanines
Piroto Duarte, J.; Vilão, R. C.; Alberto, H. V.; Gil, J. M.; Weidinger, A.; Ayres de Campos, N.http://www.sciencedirect.com/science/article/B6TVH-4V2NP2J-20/2/625b6e64a430f4e722e4eec1de4d54ad
Possible donor and acceptor energies for Mu in ZnSe
Lichti, R. L.; Carroll, B. R.; Vernon, J. E.; Bani-Salameh, H. N.; Chow, K. H.; Fan, I.; Egilmez, M.; Vilão, R. C.; Gil, J. M.; Alberto, H. V.http://www.sciencedirect.com/science/article/B6TVH-4V2NP2J-1G/2/9cc872ab4bb7b3920fd0a305f17d7708
Oxide muonics: A new compendium
Cox, S. F. J.; Lord, J. S.; Cottrell, S. P.; Gil, J. M.; Alberto, H. V.; Piroto Duarte, J.; Vilão, R. C.; Keeble, D. J.; Davis, E. A.; Keren, A.A new survey of muonium states brings the total of binary non-magnetic oxides studied to 30, with normal muonium--the interstitially trapped atomic state--found in 15 of these. The number of shallow-donor states of the type known in ZnO now also totals 15, but there are hints of several others. Tantalizingly, the shallow-donor and deep-atomic states are found to coexist in several of the candidate high-permitti...
Muonium diffusion dynamics in mercury oxide
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.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...
Dynamics of muoniated radical states in phthalocyanines
Piroto Duarte, J.; Vilão, R. C.; Alberto, H. V.; Gil, J. M.; Gil, Francisco P. S. C.; Weidinger, A.; Campos, N. Ayres deThis work reports a spectroscopic and spin-dynamics [mu]SR study of the positive muon states formed in the phthalocyanines Zn-Pc, H2-Pc and Cu-Pc. In Zn-Pc and H2-Pc, three distinct muoniated radicals are formed, seen to undergo spin-dynamical processes with charge carriers. Two of the states have very similar hyperfine interaction values, and are believed to be due to muon addition at the outer benzene rings. ...
Hyperfine Parameters for Muonium in Copper (I), Silver (I) and Cadmium Oxides
Cox, S.; Lord, J.; Cottrell, S.; Alberto, H.; Gil, J.; Piroto Duarte, J.; Vilão, R.; Keren, A.; Prabhakaran, D.Abstract Muonium centres in Cu2O, Ag2O and CdO show hyperfine parameters spanning four orders of magnitude. They exemplify the three different categories of hydrogen defect centre in semiconducting and dielectric solids, with very different electronic structure and electrical activity, namely quasi-atomic (possibly deep acceptor), deep donor and shallow donor. ; http://dx.doi.org/10.1007/s10751-005-9058-7
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