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

Abstract:

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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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Periodical:

Edited by:

Ran Chen

Pages:

773-777

DOI:

10.4028/www.scientific.net/MSF.694.773

Citation:

N. Liu et al., "Perpendicular Magnetic Anisotropy in the CoFeB/Pt Multilayers by Extraordinary Hall Effect", Materials Science Forum, Vol. 694, pp. 773-777, 2011

Online since:

July 2011

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$35.00

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