Ion-beam induced 1D to 3D periodic transformation in nanostructured multilayers
| dc.creator | Bera, S. | |
| dc.creator | Satpati, B. | |
| dc.creator | Bhattacharjee, K. | |
| dc.creator | Satyam, P. V. | |
| dc.creator | Dev, B. N. | |
| dc.date | 2005-01-12 | |
| dc.date.accessioned | 2026-07-25T15:46:46Z | |
| dc.description | Ion-irradiation-induced modifications of a periodic Pt/C multilayer system containing Fe impurity have been analyzed by transmission electron microscopy (TEM). The multilayer stack with 16 Pt/C layer pairs (period 4.23 nm) was fabricated on a glass substrate. A 2 MeV Au$^{2+}$ ion beam was rastered on the sample to obtain uniformly irradiated strips with fluences from 1$\times10^{14}$ to 1$\times10^{15}$ $ions/cm^2$. Ion-irradiation has been found to cause preferential migration of Fe towards Pt layers [Nucl. Instr. Methods Phys. Res. B212 (2003) 530]. Cross-sectional transmission electron microscopy (XTEM) shows considerable atomic redistribution for irradiation at the highest ion fluence (1$\times10^{15}$ $ions/cm^2$). Individual entities in this structure is like a cluster. Periodic multilayers have periodicity only in the direction normal to the multilayer surface. However, Fourier transform of the XTEM images of the sample irradiated at the highest-fluence shows new off-normal Fourier components of superlattice periodicities arising due to ion irradiation. With a proper understanding of this phenomenon it may be possible to fabricate three dimensional periodic structures of nanoclusters. | |
| dc.description | 12 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0501276 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0501276 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/36862 | |
| dc.subject | Materials Science | |
| dc.title | Ion-beam induced 1D to 3D periodic transformation in nanostructured multilayers | |
| dc.type | text |