| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1686281 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2006 | 4 Pages |
Abstract
In this work we present in situ investigations on the increase of the hcp-to-fcc transition temperature for Co with respect to the bulk value (420 °C) when nanoclusters are considered. Starting from Co:SiO2 composites obtained by ion implantation with average Co cluster size of about 5 nm, a transition temperature between 800 °C and 900 °C is found upon thermal annealing in vacuum by in situ transmission electron microscopy. Preliminary results on electron irradiation to promote the transition at lower temperatures are presented.
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Authors
G. Mattei, C. Maurizio, C. de Julián Fernández, P. Mazzoldi, G. Battaglin, P. Canton, E. Cattaruzza, C. Scian,