Distinction between six- and fourfold coordinated silicon in SiO2 polymorphs via electron loss near edge structure (ELNES) spectroscopy

Thomas Sharp, Z. Wu, F. Seifert, B. Poe, M. Doerr, E. Paris

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Si K-, L- and O K-edge ELNES spectra of natural α-quartz and synthetic coesite on one side and synthetic stishovite on the other show characteristic differences that can be related, by comparison with multiple-scattering (MS) calculations, to the fourfold vs. sixfold coordination of Si in these polymorphs of SiO2. It is shown by MS calculations on large clusters that the outer shells contribute relatively little to the overall topologies of the spectra. Therefore, distinction between fourfold-and sixfold-coordinated Si is possible even on a nm scale and probably also in amorphous substances.

Original languageEnglish (US)
Pages (from-to)17-24
Number of pages8
JournalPhysics and Chemistry of Minerals
Volume23
Issue number1
StatePublished - Feb 1996
Externally publishedYes

Fingerprint

Multiple scattering
Silicon
Polymorphism
silicon
spectroscopy
scattering
Spectroscopy
stishovite
electron
coesite
Quartz
Electrons
topology
Topology
shell
quartz
loss
calculation
comparison
co-ordination

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Materials Science(all)
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Distinction between six- and fourfold coordinated silicon in SiO2 polymorphs via electron loss near edge structure (ELNES) spectroscopy. / Sharp, Thomas; Wu, Z.; Seifert, F.; Poe, B.; Doerr, M.; Paris, E.

In: Physics and Chemistry of Minerals, Vol. 23, No. 1, 02.1996, p. 17-24.

Research output: Contribution to journalArticle

@article{68d9a06521514869aca812814bc0a128,
title = "Distinction between six- and fourfold coordinated silicon in SiO2 polymorphs via electron loss near edge structure (ELNES) spectroscopy",
abstract = "Si K-, L- and O K-edge ELNES spectra of natural α-quartz and synthetic coesite on one side and synthetic stishovite on the other show characteristic differences that can be related, by comparison with multiple-scattering (MS) calculations, to the fourfold vs. sixfold coordination of Si in these polymorphs of SiO2. It is shown by MS calculations on large clusters that the outer shells contribute relatively little to the overall topologies of the spectra. Therefore, distinction between fourfold-and sixfold-coordinated Si is possible even on a nm scale and probably also in amorphous substances.",
author = "Thomas Sharp and Z. Wu and F. Seifert and B. Poe and M. Doerr and E. Paris",
year = "1996",
month = "2",
language = "English (US)",
volume = "23",
pages = "17--24",
journal = "Physics and Chemistry of Minerals",
issn = "0342-1791",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Distinction between six- and fourfold coordinated silicon in SiO2 polymorphs via electron loss near edge structure (ELNES) spectroscopy

AU - Sharp, Thomas

AU - Wu, Z.

AU - Seifert, F.

AU - Poe, B.

AU - Doerr, M.

AU - Paris, E.

PY - 1996/2

Y1 - 1996/2

N2 - Si K-, L- and O K-edge ELNES spectra of natural α-quartz and synthetic coesite on one side and synthetic stishovite on the other show characteristic differences that can be related, by comparison with multiple-scattering (MS) calculations, to the fourfold vs. sixfold coordination of Si in these polymorphs of SiO2. It is shown by MS calculations on large clusters that the outer shells contribute relatively little to the overall topologies of the spectra. Therefore, distinction between fourfold-and sixfold-coordinated Si is possible even on a nm scale and probably also in amorphous substances.

AB - Si K-, L- and O K-edge ELNES spectra of natural α-quartz and synthetic coesite on one side and synthetic stishovite on the other show characteristic differences that can be related, by comparison with multiple-scattering (MS) calculations, to the fourfold vs. sixfold coordination of Si in these polymorphs of SiO2. It is shown by MS calculations on large clusters that the outer shells contribute relatively little to the overall topologies of the spectra. Therefore, distinction between fourfold-and sixfold-coordinated Si is possible even on a nm scale and probably also in amorphous substances.

UR - http://www.scopus.com/inward/record.url?scp=0029750250&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029750250&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0029750250

VL - 23

SP - 17

EP - 24

JO - Physics and Chemistry of Minerals

JF - Physics and Chemistry of Minerals

SN - 0342-1791

IS - 1

ER -