7-11 July 2014
Africa/Johannesburg timezone
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Surface Brillouin scattering studies on annealed ion-modified CVD diamond

Presented by Mr. Isaac MOTOCHI on 8 Jul 2014 from 17:10 to 19:00
Type: Poster Presentation
Session: Poster1
Track: Track A - Division for Physics of Condensed Matter and Materials
Board #: A.241

Abstract

Surface Brillouin scattering studies show a transition from a hard diamond-like damaged material to a softer material after annealing at 500 degrees Celsius and 800 degrees Celsius depending on the local damage density. CVD diamonds were implanted with carbon ions in single and multiple energy regimes to a maximum energy of 150 keV and doses of 1.5 x 1016 and 1.0 x 1016 ions/cm squared, respectively. Surface Brillouin scattering studies were then carried out to study the transformation of the damaged near surface region due to heat treatment at different annealing temperatures. Surface acoustic modes are used to study the evolution. Raman studies was also used to show the structural changes occurring due to the annealing effects on the sample surface.

Award

Yes

Level

PhD

Supervisor

Mervin Naidoo

Paper

No

Place

Room: D Ring ground level


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