Temperature dependence of positron trapping at voids in metals

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Nieminen, R. M.
dc.contributor.author Laakkonen, J.
dc.contributor.author Hautojärvi, P.
dc.contributor.author Vehanen, A.
dc.date.accessioned 2018-05-22T14:43:47Z
dc.date.available 2018-05-22T14:43:47Z
dc.date.issued 1979-02-01
dc.identifier.citation Nieminen , R M , Laakkonen , J , Hautojärvi , P & Vehanen , A 1979 , ' Temperature dependence of positron trapping at voids in metals ' Physical Review B , vol 19 , no. 3 , pp. 1397-1402 . DOI: 10.1103/PhysRevB.19.1397 en
dc.identifier.issn 0163-1829
dc.identifier.issn 1550-235X
dc.identifier.other PURE UUID: 9f61a9f8-b9b8-45c7-b123-18a92befa3cc
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/temperature-dependence-of-positron-trapping-at-voids-in-metals(9f61a9f8-b9b8-45c7-b123-18a92befa3cc).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=0000588931&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/14710953/PhysRevB.19.1397.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/31071
dc.description.abstract We report positron-lifetime measurements in void-containing aluminum samples, which show strong temperature dependence for the positron trapping probability. A theory is presented for the positron motion and trapping in a three-dimensional array of large voids, which compares favorably with the experimental data. It is shown that at low temperatures the trapping is transition limited and strongly temperature dependent with a crossover to diffusion-limited and weakly-temperature-dependent behavior at high temperatures. en
dc.format.extent 6
dc.format.extent 1397-1402
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 19, issue 3 en
dc.rights openAccess en
dc.subject.other Condensed Matter Physics en
dc.title Temperature dependence of positron trapping at voids in metals en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.subject.keyword Condensed Matter Physics
dc.identifier.urn URN:NBN:fi:aalto-201805222511
dc.identifier.doi 10.1103/PhysRevB.19.1397
dc.type.version publishedVersion

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