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HomeMaterials Science ForumMaterials Science Forum Vol. 694Perpendicular Magnetic Anisotropy in the CoFeB/Pt...

Perpendicular Magnetic Anisotropy in the CoFeB/Pt Multilayers by Extraordinary Hall Effect

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Abstract:

The perpendicular magnetic anisotropy (PMA) in as-deposited [CoFeB/Pt]n multilayers has been studied by using extraordinary Hall effect (EHE). A clear PMA has been observed in the ultrathin (~ 0.5 nm) amorphous CoFeB layer sandwiched by Pt. Moreover, PMA in as-deposited [CoFeB/Pt]n multilayers is strongly dependent on the thickness of CoFeB and Pt and the number of CoFeB/Pt bilayers. With the increasing thickness of CoFeB and the number of CoFeB/Pt bilayers, the hysteresis loops change from rectangle into bow-tie shaped.

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Frontier of Nanoscience and Technology

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Periodical:

Materials Science Forum (Volume 694)

Pages:

773-777

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.694.773

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Online since:

July 2011

Authors:

Na Liu, Hai Wang, Tao Zhu

Keywords:

Coercivity, Hall Resistivity, Multilayer, Perpendicular Magnetic Anisotropy

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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