title: Ion irradiation-induced bimodal surface morphology changes in InSb.
abstract: High-energy ion irradiation of InSb results in the formation of bimodal surface structures, namely microscale hillock-like structures fully composed of nanoscale fibers. Analysis of the surface structures by a wide range of electron microscopy techniques reveals correlations between the irradiation conditions, such as the ion energy and fluence, and changes in the surface morphology. Sputtering effects play a key role in the integrity of the surface layer with increasing ion fluence. Possible mechanisms responsible for the morphological transformation are discussed, including both irradiation-induced and mechanical effects.
authors.affiliation: Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48104, USA.
authors.forename: Alejandro G
authors.initials: AG
authors.lastname: Perez-Bergquist
authors.forename: Kundar
authors.initials: K
authors.lastname: Li
authors.forename: Yanwen
authors.initials: Y
authors.lastname: Zhang
authors.forename: Lumin
authors.initials: L
authors.lastname: Wang