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The effect of laser excitation on the Raman microspectroscopy of nanoindentation-induced silicon phase transformation

Mahon, Denise C; Mahon, Peter; Creagh, Dudley C


It is well established that silicon undergoes a series of phase transformations when subjected to the pressure of nanoindentation. Phase transformations in silicon are studied using diamond anvil apparatus. The effect of the high pressure is an increase in density in diamond-cubic Si-I and as a result an unstable metallic phase of silicon (Si-II) is formed. This rapidly transforms to other phases upon pressure release. Depending on the rate of pressure release, rhombohedral (r8) Si-XII,...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Nuclear Instruments and Methods in Physics Research: Section A
DOI: 10.1016/j.nima.2007.05.071


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