Muonium donor in rutile TiO2 and comparison with hydrogen
authors Vilao, RC; Vieira, RBL; Alberto, HV; Gil, JM; Weidinger, A; Lichti, RL; Baker, BB; Mengyan, PW; Lord, JS
nationality International
journal PHYSICAL REVIEW B
keywords II-VI; SEMICONDUCTORS; OXIDE; STATES; EPR
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.
publisher AMER PHYSICAL SOC
issn 2469-9950
year published 2015
volume 92
issue 8
digital object identifier (doi) 10.1103/PhysRevB.92.081202
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000359676600002
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journal analysis (jcr 2017):
journal impact factor 3.813
5 year journal impact factor 3.704
category normalized journal impact factor percentile 73.881
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