Study of the Structure and Magnetic Properties of Co Nanoparticles in the Matrix of Highly Porous Amorphous Carbon

Описание

Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.1134/S0031918X10020043

Ключевые слова: magnetic nanoparticles, magnetic anisotropy, nanocomposite materials, Magnetic anisotropy, Magnetic nanoparticles, Nanocomposite materials, Co Nanoparticles, Defective state, Ferromagnetic state, High concentration, High field, Local magnetic anisotropy, Magnetic properties of co, matrix, Nanocomposite materials, Powder particles, Amorphous carbon, Cobalt, Composite materials, Magnetic materials, Nanocomposites, Nanomagnetics, Nanoparticles, Nuclear magnetic resonance spectroscopy, Resonance, X ray diffraction, Magnetic anisotropy

Аннотация: This paper presents the results of investigations into the structure and the magnetic properties of powders consisting of Co nanoparticles in the matrix of a high-porous amorphous carbon material. An analysis of X-ray diffraction and nuclear magnetic resonance spectra revealed the presence of hcp and fcc phases of cobalt in the parПоказать полностьюticles of the powder and demonstrated the existence of a highly defective state, which could be related to a high concentration of defects of the "displaced-plane" type. The magnetometric measurements showed that the powder particles were in the ferromagnetic state and were characterized by a high field of the local magnetic anisotropy.

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Издание

Журнал: PHYSICS OF METALS AND METALLOGRAPHY

Выпуск журнала: Vol. 109, Is. 2

Номера страниц: 130-134

ISSN журнала: 0031918X

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Komogortsev S.V. (Siberian State Technological University)
  • Iskhakov R.S. (Siberian State Technological University)
  • Momot N.A. (Siberian Federal University)
  • Maltsev V.K. (Kirenskii Institute of Physics, Siberian Branch,Russian Academy of Sciences)
  • Barnakov C.N. (Institute of Coal and Coal Fuel Chemistry, Siberian Branch,Russian Academy of Sciences)
  • Kozlov A.P. (Institute of Coal and Coal Fuel Chemistry, Siberian Branch,Russian Academy of Sciences)

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