Electrons in feldspar II: a consideration of the influence of conduction band-tail states on luminescence processes

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dc.contributor.author Poolton, Nigel
dc.contributor.author Ozanyan, K. B.
dc.contributor.author Murray, A. S.
dc.contributor.author Wallinga, J.
dc.date.accessioned 2008-12-09T09:37:15Z
dc.date.available 2008-12-09T09:37:15Z
dc.date.issued 2002-04
dc.identifier.citation Poolton , N , Ozanyan , K B , Murray , A S & Wallinga , J 2002 , ' Electrons in feldspar II: a consideration of the influence of conduction band-tail states on luminescence processes ' Physics and Chemistry of Minerals , vol 29 , no. 3 , pp. 217-225 . en
dc.identifier.issn 0342-1791
dc.identifier.other PURE: 89328
dc.identifier.other dspace: 2160/1463
dc.identifier.uri http://hdl.handle.net/2160/1463
dc.identifier.uri http://www.springerlink.com/content/l6aqym3wpv4u7qm5/fulltext.pdf en
dc.description Poolton, Nigel; Ozanyan, K.B.; Wallinga, J.; Murray, A.S., (2002) 'Electrons in feldspar II: a consideration of the influence of conduction band-tail states on luminescence processes', Physics and Chemistry of Minerals 29(3) pp.217-225 RAE2008 en
dc.description.abstract Most natural feldspars contain many charged impurities, and display a range of bond angles, distributed about the ideal. These effects can lead to complications in the structure of the conduction band, giving rise to a tail of energy states (below the high-mobility conduction band) through which electrons can travel, but with reduced mobility: transport through these states is expected to be thermally activated. The purpose of this article is twofold. Firstly, we consider what kind of lattice perturbations could give rise to both localized and extended conduction band-tail states. Secondly, we consider what influence the band tails have on the luminescence properties of feldspar, where electrons travel through the sample prior to recombination. The work highlights the dominant role that 0.04–0.05-eV phonons play in both the luminescence excitation and emission processes of these materials. It also has relevance in the dating of feldspar sediments at elevated temperatures. en
dc.format.extent 9 en
dc.language.iso eng
dc.relation.ispartof Physics and Chemistry of Minerals en
dc.title Electrons in feldspar II: a consideration of the influence of conduction band-tail states on luminescence processes en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1007/s00269-001-0218-2
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Mathematics and Physics en
dc.description.status Peer reviewed en


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