Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 244, Issue 4, Pages 1280-1287Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200642516
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Structural properties of liquid and amorphous TiO2 have been studied in a model containing 3000 particles under periodic boundary conditions with the pairwise interatomic potentials proposed by Matsui and Akaogi. Models have been obtained by cooling from the melt via molecular dynamics (MD) simulation. Structural properties of an amorphous model obtained at 350 K have been analyzed in details through the partial radial distribution functions (PRDFs), coordination number distributions, bond-angle distributions and interatomic distances. Calculations show that calculated data agree well with the experimental ones. The evolution of structure upon cooling from the melt was observed and discussed. Calculations show that amorphous TiO2 has a distorted octahedral network structure with the mean coordination number Z(Ti-O) approximate to 6.0 and Z(O-Ti) approximate to 3.0. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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