TY  - JOUR
AU  - Marenkov, E.
AU  - Nordlund, K.
AU  - Sorokin, I.
AU  - Eksaeva, A.
AU  - Gutorov, K.
AU  - Jussila, J.
AU  - Granberg, F.
AU  - Borodin, D.
TI  - Angular and velocity distributions of tungsten sputtered by low energy argon ions
JO  - Journal of nuclear materials
VL  - 496
SN  - 0022-3115
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2017-07285
SP  - 18 - 23
PY  - 2017
AB  - Sputtering by ions with low near-threshold energies is investigated. Experiments and simulations are conducted for tungsten sputtering by low-energy, 85–200 eV Ar atoms. The angular distributions of sputtered particles are measured. A new method for molecular dynamics simulation of sputtering taking into account random crystallographic surface orientation is developed, and applied for the case under consideration. The simulations approximate experimental results well. At low energies the distributions acquire “butterfly-like” shape with lower sputtering yields for close to normal angles comparing to the cosine distribution. The energy distributions of sputtered particles were simulated. The Thompson distribution remains valid down to near-threshold 85 eV case.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000414205500003
DO  - DOI:10.1016/j.jnucmat.2017.09.021
UR  - https://juser.fz-juelich.de/record/838725
ER  -