Journal
PHYSICAL REVIEW B
Volume 80, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.245412
Keywords
copper; molecular dynamics method; Monte Carlo methods; scanning tunnelling microscopy; vacancies (crystal)
Funding
- President of Russian Federation [MK-43.2009.2]
- Research Computing Center of the Moscow State University (MSU NIVC)
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Formation of vacancies on stepped Cu(100) surface during the usage of scanning tunneling microscope (STM) is investigated on the atomic scale by performing molecular dynamics and kinetic Monte Carlo simulations. The atomic processes responsible for vacancy formation on both upper and lower terraces during the scanning are identified. We investigate the possibility of increasing of local intensity of vacancy formation with STM tip at different temperatures. The influence of trajectory and velocity of STM tip is also demonstrated. Finally, we suggest the effective method to accelerate formation of free vacancies on the stepped Cu(100) surface.
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