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초록
We study the pattern evolution of pre-rippled Au(001) during sputtering by an ion beam that is incident perpendicular to the initial ripple in azimuth at a grazing angle. Prepatterned ripples decay exponentially with time and new ripples develop only after extended flat areas form along the crossing-ion beams. Hence, the superposition of the initial and new ripple patterns does not occur. The kinetic behaviors of new ripples growing on pre-rippled Au(001) by the crossing-ion beams are distinct from those on initially flat Au(001). When comparing the pre-rippled surface to the initially flat surface, the morphological evolution is substantially influenced by enhanced nonlinear effects such as redeposition.
키워드
gold; ion-surface impact; pattern formation; sputtering; surface morphology; MOLECULAR-DYNAMICS SIMULATION; SURFACE; BOMBARDMENT; MORPHOLOGY; SI; MECHANISM; KINETICS; EROSION; CU
- 제목
- Pattern evolution on previously rippled Au(001) by crossing-ion-beam sputtering
- 저자
- Kim, J. -H.; Joe, M.; Kim, S. -P.; Ha, N. -B.; Lee, K. -R.; Kahng, B.; Kim, J. -S.
- 발행일
- 2009-05
- 유형
- Article
- 권
- 79
- 호
- 20