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Hsu H. -S.
Chang Y. -Y
Chin Y. -Y
Lin H. -J.
Chen Ch. -T.
Sun Sh. -J.
Zharkov, S. M.
Lin Ch. -R.
Ovchinnikov, S. G.
2018-02-07T07:28:24Z
2018-02-07T07:28:24Z
2017
Hsu H. -S. Exchange bias in graphitic C/Co composites [Текст] / Hsu H. -S., Chang Y. -Y, Chin Y. -Y, Lin H. -J., Chen Ch. -T., Sun Sh. -J., S. M. Zharkov, Lin Ch. -R., S. G. Ovchinnikov // Carbon. — 2017. — Т. 114. — С. 642-648
00086223
http://www.sciencedirect.com/science/article/pii/S0008622316311368
http://elib.sfu-kras.ru/handle/2311/69792
The exchange bias (EB) effect, which is the shift of the hysteresis loop of a ferromagnet in direct contact with an antiferromagnet, is highly advantageous for the development of spintronics applications. Carbon (C) has been considered as a potential material in next generation electronics production as well as spintronics devices beyond silicon. Here we show experimental evidence for an EB in C/Co composites. The significant EB needs thermal annealing to occur. X-ray absorption spectra and transmission electron microscopy data of these samples reveal that Co carbides in as grown samples decompose and form graphitic C/Co interfaces after annealing. Using x-ray magnetic circular dichroism we have detected the C spins that are responsible for the EB. These results inspire a theoretical model to investigate the magnetic interactions in graphitic C/Co interfaces and interpret the observed results.
nanomaterials
carbon
ferromagnet nanocomposite
Exchange bias in graphitic C/Co composites
Journal Article
Journal Article Preprint
642-648
29.19.22
2018-02-07T07:28:24Z
10.1016/j.carbon.2016.12.060
Институт инженерной физики и радиоэлектроники
Научно-исследовательская часть
Кафедра теоретической физики и волновых явлений
Carbon
Q1
Q1


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