Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 267, Issue 8-9, Pages 1386-1389Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2009.01.156
Keywords
Swift heavy ion irradiation; Surface modifications; Atomic force microscopy
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The interaction of swift heavy ions with any material is governed by a strong electronic excitation. In insulators this often leads to permanent modifications. We have irradiated various insulating materials (SrTiO3, TiO2, Al2O3, CaF2, SrF2, BaF2, and LiF) with swift heavy ions and have studied the irradiated surfaces by means of scanning force microscopy. For all materials used in this study we find one nanosized hillock per incident ion if the beam is oriented perpendicular with respect to the surface. Under oblique angles we find elongated chains of discontinuous nanodots on all crystalline materials investigated here. (C) 2009 Elsevier B.V. All rights reserved.
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