Low temperature electron spin resonance investigation of ultrananocrystalline diamond films as a function of nitrogen content

Rovere, M., Porro, S., Musso, S., Shames, A., Williams, Oliver Aneurin ORCID: https://orcid.org/0000-0002-7210-3004, Bruno, P., Tagliaferro, A. and Gruen, D. M. 2006. Low temperature electron spin resonance investigation of ultrananocrystalline diamond films as a function of nitrogen content. Diamond and Related Materials 15 (11-12) , pp. 1913-1916. 10.1016/j.diamond.2006.07.013

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Abstract

We have investigated the room and low temperature ESR signals in a series of ultrananocrystalline diamond films grown with different N2 enrichments in the gas phase. We have found that exchange interaction is playing the major role in spin–spin interaction and determines the linewidths. The relatively high values of spin–lattice relaxation and other features of the ESR signals show that the ESR active centers are sitting in the grain boundaries' regions.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Uncontrolled Keywords:	Nanocrystalline diamond; Defects; Grain boundaries
Publisher:	Elsevier
ISSN:	0925-9635
Last Modified:	21 Oct 2022 09:16
URI:	https://orca.cardiff.ac.uk/id/eprint/35817

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