Dielectrics

The studies of structural aspects of the cluster formation in silicate glasses doped with cerium and titanium oxides by small-angle neutron scattering

S. A. Samoilenko^ab, S. E. Kichanov^a, A. V. Belushkin^a, D. P. Kozlenko^a, V. M. Garamus^c, V. S. Gurin^d, E. A. Trusova^e, G. P. Shevchenko^d, S. K. Rakhmanov^d, L. A. Bulavin^b, B. N. Savenko<sup>a

a</sup> Joint Institute for Nuclear Research, Dubna, Moscow region
^b National Taras Shevchenko University of Kyiv
^c Helmholtz Zentrum Geesthacht, Geesthacht, Germany
^d Research Institute for Physical Chemical Problems of the Belarusian State University, Minsk
^e Belarusian State Technological University, Minsk

Abstract: The structural aspects of the formation of Ti–Ce–O nanoclusters in silicate glasses doped with oxides TiO$_2$ and CeO$_2$ have been studied by means of small-angle neutron scattering. It has been obtained that, in such glasses, complex oxide nanoclusters with sizes of 300–380 $\mathring{\mathrm{A}}$ are formed; their average size increases and the fractal dimension is changed as the concentration of the initial oxides increases. Correlation between the structural characteristics of the nanoclusters and the optical properties of the doped silicate glasses is discussed.

Received: 24.05.2011

 English version: Physics of the Solid State, 2011, 53:12, 2431–2434

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