Desorption of nanoclusters (2-40 nm) from nanodispersed metal and semiconductor layers by swift heavy ions
Description
New experimental data on the desorption of nanoclusters (2-40 nm) from nanodispersed layers of metals (Ag, Pt, In, Bi) and semiconductors (Ge, UO2, PbS) by fission fragments (FF) are reported and compared to the previously obtained data on desorption of nanoclusters of gold. It is shown that the desorption of nanoclusters from nanodispersed layers of metals and semiconductors due to electronic processes induced by swift heavy ions is a universal phenomenon. The yield of the desorbed nanoclusters depends on the cluster material and cluster size as well as on the material of the target substrate and varies within the range from ∼5 to ∼0.001 FF-1. The angular distributions of the nanoclusters do not depend on the cluster material, but only on the cluster size: the mean polar angle of desorption decreasing from 45 deg. to 23 deg. while cluster size increasing from 2 to 40 nm. The majority of the nanoclusters is desorbed in the form of molten, liquid droplets. The results are discussed
Additional details
Identifiers
- PII
- S0168583X02009072;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms
- Journal Volume
- 193
- Journal Issue
- 1-4
- Journal Page Range
- p. 798-803
- ISSN
- 0168-583X
- CODEN
- NIMBEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34004762
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- DESORPTION; FISSION FRAGMENTS; HEAVY IONS; ION BEAMS; LAYERS; SOLID CLUSTERS
- Descriptors DEC
- BEAMS; CHARGED PARTICLES; IONS; NUCLEAR FRAGMENTS; SORPTION
Optional Information
- Copyright
- Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.