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Вид документа : Статья из журнала
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Автор(ы) : Denisova E. A., Komogortsev S. V., Iskhakov R. S., Chekanova L. A., Balaev A. D., Kalinin, Yu. E., Sitnikov A. V.
Заглавие : Magnetic anisotropy in multilayer nanogranular films (Co40Fe40B20)50(SiO2)50/α-Si:H
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН , Russian Foundation for Basic Research [15-0806673, 16-03-00256, 16-03-00969]; Government of Krasnoyarsk Territory; Krasnoyarsk Region Science and Technology Support Fund [1542-04171]
Место публикации : J. Magn. Magn. Mater.: Elsevier Science, 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P.221-224. - ISSN 0304-8853, DOI 10.1016/j.jmmm.2016.12.052. - ISSN 1873-4766(eISSN)
Примечания : Cited References:26. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project. 1542-04171 and Russian Foundation for Basic Research 15-0806673, 16-03-00256, 16-03-00969.
Предметные рубрики: PERCOLATION-THRESHOLD
THIN-FILMS
NANOCRYSTALLINE MATERIALS
Аннотация: Macroscopic and local magnetic anisotropy of [CoFeB-SiO2/α-Si:H]60 multilayer films was studied in comparison with that for the thick CoFeB-SiO2 granular films. The volume fraction of magnetic component Co40Fe40B20 is ranged from 0.34 to 0.70. In the multilayer films the magnetic layer and silicon spacer thicknesses are 2.5÷4.5 nm and 3.5 nm correspondingly. The magnetization curves and ferromagnetic resonance measurements were used to determining magnetic anisotropy energy constants. The main contribution to the local magnetic anisotropy energy constant is found to be from surface magnetic anisotropy of magnetic granules. It is found that the magnetic percolation point of multilayer films (XC~40) is shifted in comparison with that in granular films (XC~30). Surface magnetic anisotropy energy constants of multilayer films with different X evaluated from the surface modes of spin-wave resonance are in the range 0.5 Ks 0.9 erg/cm2.
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