27 September 2010 to 1 October 2010
CSIR Convention Centre
Africa/Johannesburg timezone

Guided acoustic modes and elastic moduli of ZnO nanorods

Not scheduled
CSIR Convention Centre

CSIR Convention Centre

CSIR, Pretoria
Presentation Track A - Condensed Matter Physics and Material Science


Dr Bhekumusa Mathe (University of the Witwatersrand)


Elastic and stiffness moduli of vertically aligned single-crystal ZnO nanorods grown on Si(001) substrates were determined quantitatively by the surface Brillouin scattering technique. A longitudinal guided mode at 16 – 18 GHz enabled the exact determination of c11 from which c11 and c44 were measured to be 116 GPa and 42.4 GPa respectively, at room temperature.

Primary author

Dr Bhekumusa Mathe (University of the Witwatersrand)


Prof. Darrell John Comins (University of the Witwatersrand) Dr Deena Naidoo (University of the Witwatersrand)

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