Electronic structure of LaB₆ single crystal and Pulsed Laser Deposited (PDL) films: The boron perspective

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DOIResolve DOI: http://doi.org/10.1063/1.3284935
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TypeArticle
Journal titleProceedings of Combustion Institute – Canadian Section Spring Technical Meeting
Pages# of pages: 7
AbstractWe report an investigation of the electronic structure of LaB₆ nanopolycrystalline pulsed laser deposited (PLD) film and single crystal with x-ray absorption near edge structures (XANES) spectroscopy at the B K-edge. The experimental results are compared with theoretical calculations using density functional theory, and real space multiple scattering. It is found that (i) the LaB₆ PLD film is of high quality and metallic albeit it is a polycrystalline phase of nanocrystallites and (ii) the B K-edge XANES for the single crystal specimens exhibit well defined spectral features corresponding to the theoretical partial densities of states of B p character and the threshold energy is relatively low and free electronlike, revealing its metallic character. The implications of these observations to the enhancement in electron emission from the PLD films are discussed.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute
Peer reviewedYes
NPARC number14970047
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Record identifier1ba7a795-04dd-44e2-bf92-e5bf2b11f7d9
Record created2010-04-27
Record modified2016-05-09
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