Yield of InxGa1-xAs Superlattices Under Bending and Nanoindentation View Full Text


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Article Info

DATE

2003

AUTHORS

Stephen J. Lloyd, Ken M.Y. P'ng, Andy J. Bushby, David J. Dunstan, William J. Clegg

ABSTRACT

A series of In x Ga 1-x As superlattices grown on InP substrates with differing coherency strains have been deformed by bending at 500°C and by nanoindentation at room temperature. The deformation was characterised by transmission electron microscopy through examination of thin sections machined in a focused ion beam microscope. The bent samples sheared along {111} planes, and the most highly strained samples partially relaxed through the formation of misfit dislocations. Under indentation the majority of the plastic strain in the multilayers is accommodated by twinning whereas no twins were observed under indents in the InP substrate. The overall dimensions of the plastic zone increased linearly with indent load. More... »

PAGES

u2.3

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1557/proc-778-u2.3

DOI

http://dx.doi.org/10.1557/proc-778-u2.3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1115912096


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