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Superconducting boron doped nanocrystalline diamond on boron nitride ceramics

Mandal, Soumen, Bland, Henry A., Cuenca, Jerome A., Snowball, Malcolm and Williams, Oliver A. 2019. Superconducting boron doped nanocrystalline diamond on boron nitride ceramics. Nanoscale 11 (21) , pp. 10266-10272. 10.1039/C9NR02729G

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Abstract

In this work we have demonstrated the growth of nanocrystalline diamond on boron nitride ceramic. We measured the zeta potential of the ceramics to select the diamond seeds. Diamond was then grown on the seeded ceramics using a microwave chemical vapour deposition system. A clear difference was found between the samples which were seeded with nanodiamond and the ones not seeded before growth. Raman spectroscopy confirmed the excellent quality of the diamond film. Dielectric measurements showed an increase in the dielectric constant of the material after diamond growth. The diamond was also doped with boron to make it superconducting. The film had a transition temperature close to 3.4K. Similar strategies can be applied for growth of diamond on other types of ceramics.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: Royal Society of Chemistry
ISSN: 2040-3364
Date of First Compliant Deposit: 7 May 2019
Date of Acceptance: 28 April 2019
Last Modified: 30 Nov 2019 05:27
URI: http://orca.cf.ac.uk/id/eprint/122186

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