Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/43144
Title: The muonium donor in rutile TiO2 and comparison with hydrogen
Authors: Vilão, R. C. 
Vieira, R. B. L. 
Alberto, H. V. 
Gil, J. M. 
Weidinger, A. 
Lichti, R. L. 
Baker, B. B. 
Mengyan, P. W. 
Lord, J. S. 
Issue Date: Aug-2015
Publisher: American Physical Society
Project: PEstOE/FIS/UI0036/2014 
info:eu-repo/grantAgreement/FCT/5876-PPCDTI/102722/PT/Interstitial hydrogen and point defects in high-permittivity oxides 
info:eu-repo/grantAgreement/FCT/SFRH/SFRH/BD/87343/2012/PT 
info:eu-repo/grantAgreement/EC/FP7/283883/EU/Neutron Scattering and Muon Spectroscopy Integrated Initiative 
Serial title, monograph or event: Physical Review B
Volume: 92
Issue: 8
Abstract: Muonium, a positive muon and an electron, is often used as an experimentally accessible substitute for hydrogen in materials research. In semiconductors and insulators, a large amount of information on the hydrogen behavior is deduced from this analogy; however, it is seldom demonstrated that this procedure is justified. We show here, via a comparison of the hyperfine interactions, that in TiO2 muonium and hydrogen form the same configuration with the same basic electronic structure. A detailed description of the bonding characteristics of the muon to the Ti3+ polaron is presented. The special role of muon motion within the so-called oxygen channel in the rutile structure, which occurs at a lower temperature than for hydrogen, is emphasized.
URI: https://hdl.handle.net/10316/43144
DOI: 10.1103/PhysRevB.92.081202
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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