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Cold nanoindentation of germanium

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Huston, Larissa; Kiran, M. S. R. N.; Smillie, L. A.; Williams, J. S.; Bradby, Jodie

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Diamond cubic Ge is subjected to high pressures via nanoindentation at temperatures between 45 C and 20 C. The residual impressions are studied using ex-situ Raman microspectroscopy and cross-sectional transmission electron microscopy. The deformation mechanism at 20 C is predominately via the generation of crystalline defects. However, when the temperature is lowered, the analysis of residual indentation impressions provides evidence for deformation by phase transformation and formation of...[Show more]

dc.contributor.authorHuston, Larissa
dc.contributor.authorKiran, M. S. R. N.
dc.contributor.authorSmillie, L. A.
dc.contributor.authorWilliams, J. S.
dc.contributor.authorBradby, Jodie
dc.date.accessioned2019-01-07T00:33:37Z
dc.date.available2019-01-07T00:33:37Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/155082
dc.description.abstractDiamond cubic Ge is subjected to high pressures via nanoindentation at temperatures between 45 C and 20 C. The residual impressions are studied using ex-situ Raman microspectroscopy and cross-sectional transmission electron microscopy. The deformation mechanism at 20 C is predominately via the generation of crystalline defects. However, when the temperature is lowered, the analysis of residual indentation impressions provides evidence for deformation by phase transformation and formation of additional phases such as r8-Ge, hd-Ge, and amorphous Ge. Furthermore, these results show that at 0 C and below, dc-Ge will reliably phase transform via nanoindentation. Published by AIP Publishing. [http://dx.doi.org/10.1063/1.4993163]
dc.description.sponsorshipWe acknowledge the support of the ANFF ACT Node and Centre for Advanced Microscopy at ANU in carrying out this research. This work was supported by the Australian Research Council. J.E.B. acknowledges the ARC for a Future Fellowship.
dc.format.mimetypeapplication/pdf
dc.publisherAIP Publishing
dc.sourceApplied Physics Letters
dc.titleCold nanoindentation of germanium
dc.typeJournal article
local.identifier.citationvolume111
dc.date.issued2017
local.type.statusPublished Version
local.type.statusPublished Version
local.contributor.affiliationBradby, J. E., Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage021901
local.identifier.doi10.1063/1.4993163
dcterms.accessRightsOpen Access
dc.provenancehttp://www.sherpa.ac.uk/romeo/issn/0003-6951/..."Publishers version/PDF may be used on author's personal website, arXiv, institutional website, institutional repository, funders designated repository or private forums on social academic network after 12 months embargo" from SHERPA/RoMEO site (as at 07/01/19). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in (Huston, L. Q., et al. "Cold nanoindentation of germanium." Applied Physics Letters 111.2 (2017): 021901.) and may be found at (http://dx.doi.org/10.1063/1.4993163).
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