Yazar "Ozgec, O." seçeneğine göre listele

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    Atomic transport properties in barium oxide using a Tersoff potential
    (Natl Inst Optoelectronics, 2007) Dalgic, S. Senturk; Ozgec, O.
    We present a theoretical study of transport properties in barium oxide, by a three body potential of Tersoff. The structural properties are also predicted by Variational Hypernetted Chain (VMHNC) liquid state theory. The dynamic and atomic transport properties of BaO have been studied with the viscoelastic model approximation to compute both single-particle and collective time-dependent properties. The mean-square displacement, the velocity autocorrelation function and the intermediate scattering functions have calculated and then used to compute the diffusion constant at different temperatures. There are no experimental values of the diffusion coefficients for BaO, but the values calculated our results by several independent routes are mutually consistent. For comparison, the calculations are also performed using the rigid ion model potentials.
  • Küçük Resim Yok
    Öğe
    Structural and atomic transport properties of molten zinc oxide
    (Natl Inst Optoelectronics, 2007) Dalgic, S. Senturk; Ozgec, O.
    We present a theoretical study of the static structure and atomic transport properties of molten Zinc Oxide using different effective pair potentials. Semi-empirical potentials such as a three body potential of Tersoff and Kohen-Tully-Stillinger have been applied. The pair correlation functions for ZnO above melting point has predicted by Variational Hypernetted Chain Liquid State theory (VMHNC). The dynamics and atomic transport properties of ZnO have been studied with the viscoelastic model approximation by computing both single-particle and collective time-dependent properties. The mean -square displacement, the velocity autocorrelation function and the intermediate scattering function have obtained inorder to compute the self diffusion coefficients at different temperatures. For comparison, the calculations are also performed using the rigid ion model potentials. It is shown that the calculated liquid structural properties predicted by Tersoff potential are in good agreement with the latest theoretical results.