Home Minimum XPS core-level line widths of insulators, including silicate minerals
Article
Licensed
Unlicensed Requires Authentication

Minimum XPS core-level line widths of insulators, including silicate minerals

  • H.W. Nesbitt EMAIL logo , G.M. Bancroft , R. Davidson , N.S. Mcintyre and A.R. Pratt
Published/Copyright: March 28, 2015
Become an author with De Gruyter Brill
Author Information
American Mineralogist
From the journal American Mineralogist Volume 89 Issue 5-6

Abstract

A monochromatic AlKα source and magnetic confinement charge compensation yield an As 3d line width of 0.52 eV for the bulk insulator As2S3 (orpiment) which is as narrow as the As 3d line width obtained for the semiconductor FeAsS (arsenopyrite). These results, and the XPS results for silicates, demonstrate that charge broadening of XPS spectra has been overcome for most insulators provided care is taken with sample preparation. XPS core level spectral investigations of these minerals now may be conducted at the same level of detail as have been conducted on semi-conductors and metals. The Si 2p spectrum of a non-conducting orthosilicate (Mg-rich olivine) displays a total line width of 1.36 eV compared to very high resolution synchrotron XPS line widths of 1.1 eV for an Si 2p spectrum of gaseous Si(OCH3)4, and 1.42 eV for the Si 2p peak of non-charging SiO2 thin-films grown on Si metal. These results demonstrate that Si 2p peak broadening of these silicates does not result from differential charging. Comparison of the Si 2p spectrum of Si in olivine which contains non-polymerized, independent SiO4 tetrahedra, with that of a gaseous analogue, Si(OCH3)4, also composed of non-polymerized Si atoms tetrahedrally bonded to O, provides insight into the cause of Si 2p peak broadening for olivine (and probably for all other silicates). The vibrational contributions to the Si 2p spectrum of Si(OCH3)4 were used to fit the Si 2p peak of olivine, with each vibrational contribution broadened to reflect the minimum line width of the XPS instrument. Although the Si 2p envelope resulting from this procedure yields a reasonable fit to the olivine Si 2p spectrum, additional minor vibrational contributions may be required to reproduce accurately the Si 2p spectrum of olivine. Continued development of the technique should allow determination of transition metal oxidation states and other chemical state properties of non-conductor Al-silicates

Received: 2003-6-19
Accepted: 2003-9-25
Published Online: 2015-3-28
Published in Print: 2004-5-1

© 2015 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Raman spectroscopy of Fe-Ti-Cr-oxides, case study: Martian meteorite EETA79001
  2. Evidence for exclusively inorganic formation of magnetite in Martian meteorite ALH84001
  3. Structural reinvestigation of getchellite As0.98Sb1.02S3.00
  4. Mineral distribution in contact-metamorphosed siliceous dolomite at Ubehebe Peak, California, based on airborne imaging spectrometer data
  5. Morphological consequences of differential Mg2+incorporation at structurally distinct steps on calcite
  6. Coutinhoite, a new thorium uranyl silicate hydrate, from Urucum mine, Galiléia, Minas Gerais, Brazil
  7. Nature and origin of lamellar magnetism in the hematite-ilmenite series
  8. Reaction rim growth on olivine in silicic melts: Implications for magma mixing
  9. Magmatic srilankite (Ti2ZrO6) in gabbroic vein cutting oceanic peridotites: An unusual product of peridotite-melt interactions beneath slow-spreading ridges
  10. The atomic structure of bakerite and its relationship to datolite
  11. Ca-Mg and K-Mg mixing around non-bridging O atoms in silicate glasses: An investigation using 17O MAS and 3QMAS NMR
  12. The fate of structure-bound Mn2+during the decomposition of dolomite and in the resulting conversion products: An EPR study
  13. A XANES determination of the oxidation state of chromium in silicate glasses
  14. Diffusion of C and O in calcite from 0.1 to 200 MPa
  15. The flux growth of magnesium silicate perovskite single crystals
  16. Anomalous rheology of peraluminous melts
  17. Compositional characteristics and paragenetic relations of magnesiohögbomite in aluminous amphibolites from the Belomorian complex, Baltic Shield, Russia
  18. The behavior of Li and B during planetary basalt crystallization
  19. Anorogenic Gross Spitzkoppe granite stock in central western Namibia: Part I. Petrology and geochemistry
  20. Anorogenic Gross Spitzkoppe granite stock in central western Namibia: Part II. Structures and textures indicating crystallization from undercooled melt
  21. Aluminian low-Ca pyroxene in a Ca-Al-rich chondrule from the Semarkona meteorite
  22. A low-load, high-temperature deformation apparatus for volcanological studies
  23. Minimum XPS core-level line widths of insulators, including silicate minerals
  24. Ferri-ottoliniite and ferriwhittakerite, two new end-members of the new Group 5 for monoclinic amphiboles
https://doi.org/10.2138/am-2004-5-623

Articles in the same Issue

  1. Raman spectroscopy of Fe-Ti-Cr-oxides, case study: Martian meteorite EETA79001
  2. Evidence for exclusively inorganic formation of magnetite in Martian meteorite ALH84001
  3. Structural reinvestigation of getchellite As0.98Sb1.02S3.00
  4. Mineral distribution in contact-metamorphosed siliceous dolomite at Ubehebe Peak, California, based on airborne imaging spectrometer data
  5. Morphological consequences of differential Mg2+incorporation at structurally distinct steps on calcite
  6. Coutinhoite, a new thorium uranyl silicate hydrate, from Urucum mine, Galiléia, Minas Gerais, Brazil
  7. Nature and origin of lamellar magnetism in the hematite-ilmenite series
  8. Reaction rim growth on olivine in silicic melts: Implications for magma mixing
  9. Magmatic srilankite (Ti2ZrO6) in gabbroic vein cutting oceanic peridotites: An unusual product of peridotite-melt interactions beneath slow-spreading ridges
  10. The atomic structure of bakerite and its relationship to datolite
  11. Ca-Mg and K-Mg mixing around non-bridging O atoms in silicate glasses: An investigation using 17O MAS and 3QMAS NMR
  12. The fate of structure-bound Mn2+during the decomposition of dolomite and in the resulting conversion products: An EPR study
  13. A XANES determination of the oxidation state of chromium in silicate glasses
  14. Diffusion of C and O in calcite from 0.1 to 200 MPa
  15. The flux growth of magnesium silicate perovskite single crystals
  16. Anomalous rheology of peraluminous melts
  17. Compositional characteristics and paragenetic relations of magnesiohögbomite in aluminous amphibolites from the Belomorian complex, Baltic Shield, Russia
  18. The behavior of Li and B during planetary basalt crystallization
  19. Anorogenic Gross Spitzkoppe granite stock in central western Namibia: Part I. Petrology and geochemistry
  20. Anorogenic Gross Spitzkoppe granite stock in central western Namibia: Part II. Structures and textures indicating crystallization from undercooled melt
  21. Aluminian low-Ca pyroxene in a Ca-Al-rich chondrule from the Semarkona meteorite
  22. A low-load, high-temperature deformation apparatus for volcanological studies
  23. Minimum XPS core-level line widths of insulators, including silicate minerals
  24. Ferri-ottoliniite and ferriwhittakerite, two new end-members of the new Group 5 for monoclinic amphiboles
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 12.10.2025 from https://www.degruyterbrill.com/document/doi/10.2138/am-2004-5-623/html
Scroll to top button