Calculation of positron annihilation characteristics of six main defects in 6H -SiC and the possibility to distinguish them experimentally

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLinez, F.en_US
dc.contributor.authorMakkonen, I.en_US
dc.contributor.authorTuomisto, F.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorAntimatter and Nuclear Engineeringen
dc.date.accessioned2016-10-13T06:10:12Z
dc.date.issued2016-07-06en_US
dc.description.abstractWe have determined positron annihilation characteristics (lifetime and Doppler broadening) in six basic vacancy-type defects of 6H-SiC and two nitrogen-vacancy complexes using ab initio calculations. The positron characteristics obtained allow us to point out which positron technique in the most adapted to identify a particular defect. They show that the coincidence Doppler broadening technique is the most relevant for observing the silicon vacancy-nitrogen complexes, VSiNC, and carbon vacancy-carbon antisite ones, VCCSi. For the other studied defects, the calculated positron characteristics are found to be too close for the defects to be easily distinguished using a single positron annihilation technique. Then it is required to use complementary techniques, positron annihilation based or other.en
dc.description.versionPeer revieweden
dc.format.extent1-11
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLinez, F, Makkonen, I & Tuomisto, F 2016, ' Calculation of positron annihilation characteristics of six main defects in 6H -SiC and the possibility to distinguish them experimentally ', Physical Review B, vol. 94, no. 1, 014103, pp. 1-11 . https://doi.org/10.1103/PhysRevB.94.014103en
dc.identifier.doi10.1103/PhysRevB.94.014103en_US
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.otherPURE UUID: 91439b21-25a9-4307-ab52-3f441775e5ecen_US
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dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/6664172/PhysRevB.94.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/22921
dc.identifier.urnURN:NBN:fi:aalto-201610135021
dc.language.isoenen
dc.relation.ispartofseriesPHYSICAL REVIEW Ben
dc.relation.ispartofseriesVolume 94, issue 1en
dc.rightsopenAccessen
dc.titleCalculation of positron annihilation characteristics of six main defects in 6H -SiC and the possibility to distinguish them experimentallyen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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