Pattern evolution on previously rippled Au(001) by crossing-ion-beam sputtering

Title
Pattern evolution on previously rippled Au(001) by crossing-ion-beam sputtering
Authors
김지현조민웅김상필N.B.Ha이광렬B. Kahng김재성
Keywords
Molecular Dynamics Simulation; ion bombardment; surface nano-structure; Au (001); gold; ion-surface impact; pattern formation; sputtering; surface morphology
Issue Date
2009-05
Publisher
Physical review B, Condensed matter and materials physics
Citation
VOL 79, NO 20, 205403-1-205403-8
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/41287
ISSN
1098-0121
Appears in Collections:
KIST Publication > Article
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