DIRECTIONAL MASS-TRANSPORT BY MOMENTUM-TRANSFER FROM ION-BEAM TO SOLID

Citation
L. Cliche et al., DIRECTIONAL MASS-TRANSPORT BY MOMENTUM-TRANSFER FROM ION-BEAM TO SOLID, Physical review letters, 75(12), 1995, pp. 2348-2351
Citations number
12
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
75
Issue
12
Year of publication
1995
Pages
2348 - 2351
Database
ISI
SICI code
0031-9007(1995)75:12<2348:DMBMFI>2.0.ZU;2-H
Abstract
Irradiation of InP with MeV Se ions directed a few degrees off the sur face normal leads to a lateral displacement of the implanted material. Adjacent surface regions that are not irradiated remain unaffected. T he dependence of the displacement on ion energy and its directionality strongly suggest that the effect is caused by momentum transfer from the ion to the solid. The amount of displaced material as a function o f ion beam energy or angle of incidence can be described with a simple model incorporating a shear stress, applied to the target as the ion slows down, and radiation enhanced viscosity.