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Size-dependent concentration of N0 paramagnetic centres in HPHT nanodiamonds

Materials Science 2016-01-06 v1 Mesoscale and Nanoscale Physics

Abstract

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 N0 paramagnetic centers. Two other observed paramagnetic centers are attributed to the two types of structures in the nanodiamond shell.

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Cite

@article{arxiv.1512.04186,
  title  = {Size-dependent concentration of N0 paramagnetic centres in HPHT nanodiamonds},
  author = {Boris V Yavkin and Georgy V Mamin and Marat R. Gafurov and Sergei B. Orlinskii},
  journal= {arXiv preprint arXiv:1512.04186},
  year   = {2016}
}

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8 pages