Long-range structural fluctuations in a CaO-Al2O3-2SiO2 glass observed by spatially resolved near-edge spectroscopy

Nan Jiang; Jianrong Qiu; John Spence

doi:10.1103/PhysRevB.66.054203

Long-range structural fluctuations in a CaO-Al₂O₃-2SiO₂ glass observed by spatially resolved near-edge spectroscopy

Nan Jiang, Jianrong Qiu, John Spence

Physics

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

We report evidence for long-range structural fluctuations in a CaO-Al₂O₃-2SiO₂ glass of homogeneous composition. Our new experimental method is based on spatial variations in the electron energy-loss near-edge spectroscopy (ELNES), using the small focused probe of an electron microscope. The results are obtained from the average of the short to medium-range structures around Al and Si, which are obtained by comparing experimental data in the glass with calculations of the local density of states in a compositionally equivalent (anorthite) crystal.

Original language	English (US)
Article number	054203
Pages (from-to)	542031-542035
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.66.054203
State	Published - Aug 1 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.66.054203

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abstract = "We report evidence for long-range structural fluctuations in a CaO-Al2O3-2SiO2 glass of homogeneous composition. Our new experimental method is based on spatial variations in the electron energy-loss near-edge spectroscopy (ELNES), using the small focused probe of an electron microscope. The results are obtained from the average of the short to medium-range structures around Al and Si, which are obtained by comparing experimental data in the glass with calculations of the local density of states in a compositionally equivalent (anorthite) crystal.",

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AU - Qiu, Jianrong

AU - Spence, John

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Y1 - 2002/8/1

N2 - We report evidence for long-range structural fluctuations in a CaO-Al2O3-2SiO2 glass of homogeneous composition. Our new experimental method is based on spatial variations in the electron energy-loss near-edge spectroscopy (ELNES), using the small focused probe of an electron microscope. The results are obtained from the average of the short to medium-range structures around Al and Si, which are obtained by comparing experimental data in the glass with calculations of the local density of states in a compositionally equivalent (anorthite) crystal.

AB - We report evidence for long-range structural fluctuations in a CaO-Al2O3-2SiO2 glass of homogeneous composition. Our new experimental method is based on spatial variations in the electron energy-loss near-edge spectroscopy (ELNES), using the small focused probe of an electron microscope. The results are obtained from the average of the short to medium-range structures around Al and Si, which are obtained by comparing experimental data in the glass with calculations of the local density of states in a compositionally equivalent (anorthite) crystal.

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Long-range structural fluctuations in a CaO-Al₂O₃-2SiO₂ glass observed by spatially resolved near-edge spectroscopy

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