Browsing by Author "Hundur, Yakup"

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Citation - WoS: 2
Citation - Scopus: 3
Dynamical Analysis of Sputtering at Threshold Energy Range: Modelling of Ar+ni(100) Collision System
(Iop Publishing Ltd, 2008) Hundur, Yakup; Guvenc, Ziya B.; Hippler, Rainer
The sputtering process of Ar+Ni(100) collision systems is investigated by means of constant energy molecular dynamics simulations. The Ni(100) slab is mimicked by an embedded-atom potential, and the interaction between the projectile and the surface is modelled by using the reparametrized ZBL potential. Ni atom emission from the lattice is analysed over the range of 20-50 eV collision energy. Sputtering yield, angular and energy distributions of the scattered Ar and of the sputtered Ni atoms are calculated, and compared to the available theoretical and experimental data.
Citation - WoS: 3
Citation - Scopus: 2
Molecular Dynamics of Thermal Vibration Effects: Ar + Ni(100) Collision System
(Elsevier Science Bv, 2010) Hundur, Yakup; Guvenc, Ziya B.; Hippler, Rainer
In this work constant energy molecular dynamics simulations are achieved for investigating sputtering process of Ar + Ni(1 0 0) collision system. The Ni crystal is imitated by an embedded-atom potential, whereas the interaction between the projectile and the surface is modeled by re-parameterized ZBL potential. Seven hundred eighty-four Ar atoms carrying 20-50 eV are sent towards a Ni(1 0 0) surface at normal incidence. Each projectile meets with different initial coordinates (phase) of the nickel atoms because of thermal vibrations in the slab. Effects of the different initial phases of the surface are compared with the available theoretical and experimental data. (C) 2009 Elsevier B.V. All rights reserved.