Magnetic anisotropy of co-nanostructures embedded in matrices with different pores size and morphology

Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Год издания: 2015

Идентификатор DOI: 10.4028/www.scientific.net/SSP.233-234.583

Ключевые слова: Electroless plating, Magnetic anisotropy, Template synthesis, Anisotropy, Composite materials, Composite membranes, Electroless plating, Magnetism, Membranes, Nanocrystals, Polycarbonates, Pore size, Saturation magnetization, Scanning electron microscopy, Silica, X ray diffraction, Crystalline anisotropy, Electroless reduction, Local magnetic anisotropy, Polycarbonate membranes, Spectra characteristic, Template synthesis, Uniaxial magnetic anisotropy, Vibrating sample magnetometer, Magnetic anisotropy

Аннотация: Composite materials with Co(P) particles embedded into pores of silica and track etched polycarbonate membranes were fabricated by an electroless reduction. The magnetic and structural properties of the composite materials are characterized by scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometer. The macroscopic and local magnetic anisotropy of the Co(P) particles electroless deposited in the pores of the polycarbonate membrane and silica is studied. The composite materials with linear pores exhibit uniaxial magnetic anisotropy. The easy axis lies along the Co(P) rods, the shape anisotropy dominates over the intrinsic crystalline anisotropy. Information on local anisotropy field and the grain size was obtained from investigation of approach to saturation magnetization law. The local anisotropy field for all the samples depends on P content. For Co(P) rods the local anisotropy value is also determined by nominal pore sizes. It was found that the investigated Co(P) rods is nanocrystalline. The effects of different pores morphology on the FMR-spectra characteristics are studied. © (2015) Trans Tech Publications, Switzerland.

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Издание

Журнал: (29 June 2014 through 3 July 2014

Выпуск журнала: Vol. 233-234

Номера страниц: 583-586

Авторы

  • Denisova Elena (Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences)
  • Chekanova Lidia (Krasnoyarsk Institute of Railways Transport)
  • Iskhakov Rauf (Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences)
  • Komogortsev Sergey (Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences)
  • Nemtsev Ivan (Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science)
  • Velikanov Dmitry (Siberian Federal University)
  • Mel'nikova Svetlana (Siberian Federal University)

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