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Surface Brillouin scattering on annealed ion-implanted CVD diamond

Naidoo, Mervin, Motochi, Isaac, Mathe, Mbekimusa, Erasmus, Rudolph, Aradi, Emily and Derry, Trevor Edward (2015) Surface Brillouin scattering on annealed ion-implanted CVD diamond. Diamond and Related Materials, 56. pp. 6-12. ISSN 0925-9635

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Single crystal <100> diamond samples were implanted with a total fluence of 1.5 × 1016 ions/cm2 at single energy of 150 keV using carbon ions. This implantation fluence created a damage density that would not restore the diamond structure after annealing. Surface Brillouin scattering studies show that the elastic properties of the highly damaged diamond layer starts to transit from diamond-like to amorphous carbon state at an annealing temperature of 500 °C. The amorphous carbon layer is shown to have a sound velocity (elastic properties) similar to those reported for tetrahedral amorphous carbon (ta-C). Raman spectroscopy, EELS and HRTEM has been used in conjunction with the SBS data to monitor the changes in the carbon implanted diamond at different annealing temperatures.

Item Type: Article
Uncontrolled Keywords: Ion implantation, Surface Brillouin scattering, Acoustic waves
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Related URLs:
Depositing User: Emily Aradi
Date Deposited: 29 Nov 2016 13:15
Last Modified: 28 Aug 2021 12:10


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