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Titolo:
Ripple topography of ion-beam-eroded graphite: A key to ion-beam-induced damage tracks
Autore:
Habenicht, S; Bolse, W; Feldermann, H; Geyer, U; Hofsass, H; Lieb, KP; Roccaforte, F;
Indirizzi:
Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany Univ Gottingen Gottingen Germany D-37073 s 2, D-37073 Gottingen, Germany Univ Gottingen, Sonderforsch Bereich 345, D-37073 Gottingen, Germany Univ Gottingen Gottingen Germany D-37073 345, D-37073 Gottingen, Germany Univ Stuttgart, Inst Strahlenphys, D-70569 Stuttgart, Germany Univ Stuttgart Stuttgart Germany D-70569 hys, D-70569 Stuttgart, Germany Univ Gottingen, Inst Phys 1, D-37073 Gottingen, Germany Univ Gottingen Gottingen Germany D-37073 s 1, D-37073 Gottingen, Germany
Titolo Testata:
EUROPHYSICS LETTERS
fascicolo: 2, volume: 50, anno: 2000,
pagine: 209 - 215
SICI:
0295-5075(200004)50:2<209:RTOIGA>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCANNING TUNNELING MICROSCOPY; SURFACE-DIFFUSION; ROUGHENING INSTABILITY; BOMBARDMENT; IMPLANTER; ROUGHNESS; AU(111); IMPACT; METALS; GROWTH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Habenicht, S Univ Gottingen, Inst Phys 2, Bunsenstr 7-9, D-37073 Gottingen, Germany Univ Gottingen Bunsenstr 7-9 Gottingen Germany D-37073 rmany
Citazione:
S. Habenicht et al., "Ripple topography of ion-beam-eroded graphite: A key to ion-beam-induced damage tracks", EUROPH LETT, 50(2), 2000, pp. 209-215

Abstract

The ripple topography of ion-beam-eroded surfaces offers a novel method todetermine the shape of collision cascades and the distribution of deposited energy From the energy dependence of the ripple spacing of Ar+ and Xe+-irradiated graphite surfaces at ion energies between 2 and 50 keV, the relations between mean depth, longitudinal and lateral straggling of the damage cascade were obtained. Their evolution with the ion energy was found to follow power laws for both ion masses and implies an energy-independent lateralspread of the damage cascade, while depth and longitudinal spread scale with the ion energy. This can be explained by the nuclear stopping power being nearly independent of energy in the observed region. High-resolution micrographs of single-ion impacts support this interpretation, as the hillock-shaped surface defects found in the experiments show a lateral extension being independent of the ion energy.

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Documento generato il 03/12/20 alle ore 11:26:18