Structure Constant and Grain Size Determination by Ferromagnetic Resonance in Thin Magnetic Films : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1007/s11182-021-02293-7

Ключевые слова: ferromagnetic resonance, Magnetization ripple, microwave frequencies, nanocrystallites, Random magnetic anisotropy, structure constant, thin magnetic films

Аннотация: The paper shows that the structure constant and the average crystal grain size of anisotropic nanocrystalline magnetic film can be determined by analyzing the shape of the microwave absorption peak in sweeping the external magnetic field along the hard magnetization axis. In the theory of magnetization ripple, the surface energy density of the local magnetic anisotropy is connected with the structure constant, which can be used to determine the quality of nanocrystalline films. The effectiveness of the structure constant measurements is demonstrated on a 300-nm-thick nanocrystalline Co–P film. Spectral data on the microwave absorption are collected in the ~1 mm2 region of the film using a scanning ferromagnetic resonance spectrometer. The structure constant obtained from the spectral analysis allows detecting the average grain size of the magnetic film, which is in good agreement with transmission electron microscopy observations.

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Издание

Журнал: Russian Physics Journal

Выпуск журнала: Т. 64, 1

ISSN журнала: 10648887

Место издания: Томск

Издатель: Springer New York Consultants Bureau

Авторы

  • Belyaev B.A. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia)
  • Boev N.M. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia)
  • Gorchakovskii A.A. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia)
  • Izotov A.V (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia)
  • Solovev P.N. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia)

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