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Electrical and magnetic properties of nanodiamond and pyrocarbon composites


The electrical and magnetic properties of the nanodiamond composites comprising nanodiamond, pyrolytic carbon, and nanosized pores were studied. The composites are p-type semiconductors and their resistance decreases by 12 orders of magnitude as the pyrocarbon-to-diamond ratio γ increases from 0 to 80 wt %. Evidence for paramagnetic properties of the nanodiamond composites was obtained. The observed properties are explained by increased concentration of surface Tamm states. The paramagnetic properties are explained in terms of the electron spins localized on the nanodiamond surface in the composite.

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Correspondence to P. I. Belobrov.

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Original Russian Text © N.I. Kiselev, D.A. Velikanov, S.B. Korchagina, E.A. Petrakovskaya, A.D. Vasil’ev, L.A. Solov’ev, D.A. Balaev, O.A. Bayukov, I.A. Denisov, S.S. Tsegel’nik, E.V. Eremin, D.A. Znak, K.A. Shaikhutdinov, A.A. Shubin, N.P. Shestakov, N.V. Volkov, S.K. Gordeev, P.I. Belobrov, 2012, published in Rossiiskii Khimicheskii Zhurnal, 2012, Vol. 56, Nos. 1–2, pp. 50–57.

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Kiselev, N.I., Velikanov, D.A., Korchagina, S.B. et al. Electrical and magnetic properties of nanodiamond and pyrocarbon composites. Russ J Gen Chem 83, 2173–2181 (2013). https://doi.org/10.1134/S1070363213110376

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  • General Chemistry
  • Aerosil
  • Diamond Particle
  • Paramagnetic Property
  • Surface Electronic State