Effects of temperature and surface orientation on migration behaviours of helium atoms near tungsten surfaces

@inproceedings{Wang2015EffectsOT,
  title={Effects of temperature and surface orientation on migration behaviours of helium atoms near tungsten surfaces},
  author={Xiaoshuang Wang and Zhangwen Wu and Qing Teng Hou},
  year={2015}
}
Abstract Molecular dynamics simulations were performed to study the dependence of migration behaviours of single helium atoms near tungsten surfaces on the surface orientation and temperature. For W{100} and W{110} surfaces, He atoms can quickly escape out near the surface without accumulation even at a temperature of 400 K. The behaviours of helium atoms can be well-described by the theory of continuous diffusion of particles in a semi-infinite medium. For a W{111} surface, the situation is… CONTINUE READING