Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Molecular Simulation Studies of Scattered and Penetrated Hydrogen Ions III. Kinetic Energies in Ni (100) layers

산란 및 투과된 수소 이온의 분자 전산 연구 III. 니켈 (100) 표면 층의 운동에너지

  • Suh, Soong-Hyuck (Department of Chemical Engineering, Keimyung University) ;
  • Min, Woong-Ki (Department of Chemical Engineering, Keimyung University)
  • 서승혁 (계명대학교 화학공학과) ;
  • 민웅기 (계명대학교 화학공학과)
  • Published : 2001.09.15

Abstract

In this paper molecular dynamics simulations have been carried out to investigate energy and momentum transfer of hydrogen ions impacted on the Ni (100) surface with $45^{\circ}$ and $90^{\circ}$ incident angles. The initial kinetic energies of the hydrogen ion were ranged from 100 eV to 1,600 eV to study the layer-by-layer energy variation as a dependence of incident energies and angles. At low incident energies, the scattering energy transfer is dominated by the normal motion of surface layers due to thermal vibrations and multiple collision effects. For higher incident energies, the scattering energy transfer in a normal direction is greater than that in a parallel direction. In the case of penetration, the amount of transferred energies do not affect much on Ni layers at low incident energy. It was found channeling effects through Ni layers with increasing incident energies.

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Acknowledgement

Supported by : 연구개발정보센터(KISTI)