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Core level studies of calcite and dolomite
Author(s) -
Järvinen Lauri,
Leiro Jarkko,
Hein Markku
Publication year - 2014
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.5511
Subject(s) - calcite , dolomite , x ray photoelectron spectroscopy , synchrotron , spectral line , analytical chemistry (journal) , spectroscopy , chemistry , mineralogy , materials science , nuclear magnetic resonance , physics , environmental chemistry , optics , quantum mechanics , astronomy
Conventional X‐ray photoelectron spectroscopy (XPS) and synchrotron‐based X‐ray photoelectron spectroscopy (HRXPS) have been used to study Iceland spar calcite (CaCO 3 ) and dolomite (CaMg(CO 3 ) 2 ). The obtained full widths at half maximum (FWHMs) are mostly narrower than in the previous results, which together with the symmetry of the fitted peaks indicate effective neutralisation of surface charging. Some previously unidentified features observed in the Ca 2p, C 1s and O 1s spectra of calcite have been suggested to be bulk plasmons. Also, surface core level shifts in Ca 2p (in calcite) and Mg 2p (in dolomite) spectra have been obtained and found to be consistent between XPS and HRXPS measurements. A peak attributed to carbide (CaC 2 ) has been suggested to indicate beam‐assisted interaction with hydrocarbons found on the surface. Copyright © 2014 John Wiley & Sons, Ltd.