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Observation of ion-induced ripples in Cu(001)

Published online by Cambridge University Press:  15 February 2011

Wai Lun Chan ,
Niravun Pavenayotin  and
Eric Chason
Wai Lun Chan
Affiliation:
Division of Engineering, Brown University Providence, RI 02912
Niravun Pavenayotin
Affiliation:
Division of Engineering, Brown University Providence, RI 02912
Eric Chason
Affiliation:
Division of Engineering, Brown University Providence, RI 02912
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Abstract

A linear instability theory proposed by Bradley and Harper accounts for many of the features of ripple formation on amorphous and semiconductor surfaces, but it is not consistent with measurements of sputtered metal surfaces. In the present work, we report observations of sputter ripples on Cu(001) surfaces which are similar to amorphous and semiconductor systems. By using higher ion flux and temperature than previously used, we have produced ripples in which the wavelength is independent of time and the amplitude increases exponentially during the early stages of growth. The ripple evolution was measured using in situ light scattering during sputtering.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 777: Symposium A – Nanostructuring Materials with Energetic Beams , 2003 , T9.6
Copyright
Copyright © Materials Research Society 2003

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