Size-dependent concentration of N<sup>0</sup> paramagnetic centres in HPHT nanodiamonds

Size-dependent concentration of N<sup>0</sup> paramagnetic centres in HPHT nanodiamonds

Size-calibrated commercial nanodiamonds synthesized by high-pressure high-temperature (HPHT) technique were studied by high-frequency W- and conventional X-band electron paramagnetic resonance (EPR) spectroscopy. The numbers of spins in the studied samples were estimated. The core-shell model of the...

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Bibliographic Details
Main Author: B.V. Yavkin, G.V. Mamin, M.R. Gafurov, S.B. Orlinskii
Format: Article
Language:English
Published: Kazan Federal University 2015-12-01
Series:Magnetic Resonance in Solids
Subjects:
diamond
nanodaimond
EPR
ESR
crystal defect
Online Access:http://mrsej.kpfu.ru/contents/2015/MRSej_15101.pdf
Description
Summary:Size-calibrated commercial nanodiamonds synthesized by high-pressure high-temperature (HPHT) technique were studied by high-frequency W- and conventional X-band electron paramagnetic resonance (EPR) spectroscopy. The numbers of spins in the studied samples were estimated. The core-shell model of the HPHT nanodiamonds was proposed to explain the observed dependence of the concentration of the N<sup>0</sup> paramagnetic centers. Two other observed paramagnetic centers are attributed to the two types of structures in the nanodiamond shell.
ISSN:2072-5981

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