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Amorphisation and Recrystallisation of Nanometre Sized Zones in Silicon

Edmondson, P.D., Donnelly, S. E. and Birtcher, R.C. (2005) Amorphisation and Recrystallisation of Nanometre Sized Zones in Silicon. Solid State Phenomena, 108-10. pp. 145-150. ISSN 1662-9779

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In this paper we present a detailed study in which the formation, by heavy ion impact, and thermal recrystallisation of individual amorphous zones have been studied using in-situ transmission electron microscopy. In agreement with previous work, we observe a reduction in the total volume of amorphous material contained within the amorphous zones following thermal annealing over a wide range of temperatures. When the evolution of the individual amorphous zones is followed, those with similar starting sizes are observed to recrystallise over a range of temperatures from 70 ºC to 500 ºC. The temperature at which an amorphous zone fully recrystallises does not appear to be correlated with initial size. In addition, zones are occasionally observed to increase in size temporarily on some isochronal annealing steps. Furthermore, observations during a ramp anneal show that many zones recrystallise in a stepwise manner separated by periods of stability. These phenomenon are discussed in terms of the I-V pair.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Computing and Engineering > Electron Microscopy and Materials Analysis
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Depositing User: Graeme Greaves
Date Deposited: 02 Oct 2013 11:47
Last Modified: 02 Oct 2013 11:47


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