The structure and the magnetic properties of cobalt nanoparticles in the high-porous amorphous carbon matrix

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Год издания: 2009

Ключевые слова: Amorphous carbon matrix, Co Nanoparticles, Cobalt nanoparticles, Cobalt particles, Defective phase, Local magnetic anisotropy, Magnetic properties of co, NMR spectrum, Amorphous carbon, Cobalt, Magnetic properties, Nuclear magnetic resonance spectroscopy, Nanoparticles

Аннотация: Structure and magnetic properties of Co nanoparticles in the high-porous amorphous carbon matrix are presented. The average size of cobalt particles is 20 nm. The Co nanoparticles are ferromagnetic and characterized by the local magnetic anisotropy fields Ha = 10 kOe. The material consists of Jcc and hcp Co phases and highly defective phase with high concentration of stacking faults. There are no variations observed in the line shape of the NMR spectrum of Co particles at different temperatures. This implies that there are no polymorphous transfonnations inside Co particles with temperature.

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Издание

Журнал: Physics, Chemistry and Application of Nanostructures - Proceedings of the International Conference, NANOMEETING 2009

Номера страниц: 268-271

Авторы

  • Komogortsev S.V. (L. V. Kirensky Institute Physics SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation)
  • Iskhakov R.S. (L. V. Kirensky Institute Physics SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation)
  • Maltsev V.K. (L. V. Kirensky Institute Physics SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation)
  • Chekanova L.A. (L. V. Kirensky Institute Physics SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation)
  • Krayuhin I.N. (L. V. Kirensky Institute Physics SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation)
  • Momot N.A. (Siberian Federal University, UNESCO Department, Kirensky Str. 26, Krasnoyarsk, Russian Federation)
  • Barnakov Ch.N. (Institute OJCoal and Coal Chemistry SB RAS, Sovetsky Ave. 18, Kemerovo, Russian Federation)

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