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Structural characterization by x-ray methods of novel antimicrobial gallium-doped phosphate-based glasses
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10.1063/1.3076057
/content/aip/journal/jcp/130/6/10.1063/1.3076057
http://aip.metastore.ingenta.com/content/aip/journal/jcp/130/6/10.1063/1.3076057

Figures

Image of FIG. 1.
FIG. 1.

HEXRD data from the glasses. (a) -space interference functions from the (lower curve) and (upper curve) samples and (b) the real-space PDFs obtained by Fourier transformation of the -space data (solid lines) together with the simulations (dashed curves). Note that in each frame the upper curves have been offset for illustrative purposes.

Image of FIG. 2.
FIG. 2.

Difference PDF showing atomic correlations involving gallium (obtained by taking the difference between the PDFs shown in Fig. 1).

Image of FIG. 3.
FIG. 3.

Approximate x-ray scattering weighting factors for the difference PDF shown in Fig. 2.

Image of FIG. 4.
FIG. 4.

-edge EXAFS spectra from the glasses. (a) -weighted EXAFS (solid lines) with theoretical fits (dashed lines) from the (lower curves) and (upper curves) samples and (b) Fourier transforms of these EXAFS spectra (solid lines) with theoretical fits (dashed lines). Note that in each frame the upper curves have been offset to aid clarity.

Image of FIG. 5.
FIG. 5.

-edge XANES spectra from (a) crystalline reference materials: quartz (solid line), (dashed line), and (dotted line) and (b) glasses: (solid line), 0.03 (dashed line), and 0.05 (dotted line).

Tables

Generic image for table
Table I.

Structural parameters obtained from the simulation of the HEXRD data from the glasses ( is the atomic separation, is the coordination number, and is the disorder parameter).

Generic image for table
Table II.

Structural parameters obtained from the simulation of the EXAFS data from the glasses ( is the atomic separation, is the coordination number, and is the Debye–Waller factor).

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/content/aip/journal/jcp/130/6/10.1063/1.3076057
2009-02-13
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Structural characterization by x-ray methods of novel antimicrobial gallium-doped phosphate-based glasses
http://aip.metastore.ingenta.com/content/aip/journal/jcp/130/6/10.1063/1.3076057
10.1063/1.3076057
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