Amorphous ferromagnetic CoSiB/Pd multilayer with perpendicular magnetic anisotropy View Full Text


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Article Info

DATE

2013-01

AUTHORS

Sol Jung, Haein Yim, Jungbum Yoon

ABSTRACT

Perpendicular magnetic anisotropy has been studied for possible use in high-density spin transfer torque magnetic random access memories. The key issues of high-density spin transfer torque magnetic random access memories are decreasing the switching current and have the high thermal stability. In order to solve these problems, the approach of developing a new amorphous ferromagnetic material for use as a pinned layer for a multilayer with a low saturated magnetization value has been suggested. In a previous study, amorphous ferromagnetic material CoSiB was shown to have a low saturated magnetization (Ms = 470 emu/cm3) and a modest anisotropy constant (Ku = 1,500 erg/cm3). Then, we investigated the perpendicular magnetic anisotropy of a [CoSiB tCoSiB nm/Pt 1.4 nm]5 multilayer, where tCoSiB are 0.1, 0.2, 0.3, 0.4, and 0.5 nm. In this study, we present a new multilayer type based on the previous study, and this multilayer, CoSiB/Pd multilayer has the perpendicular magnetic anisotropy. In this letter, we have investigated the perpendicular magnetic anisotropies of a [CoSiB tCoSiB nm/Pd 1.3 nm]5 multilayer, where tCoSiB are 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6 nm and [CoSiB 6.3 nm/Pd tPd nm]5 multilayer, where tPd are 1.1, 1.2, 1.3, 1.4, 1.5, and 1.6 nm. More... »

PAGES

10-13

References to SciGraph publications

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URI

http://scigraph.springernature.com/pub.10.3938/jkps.62.10

DOI

http://dx.doi.org/10.3938/jkps.62.10

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https://app.dimensions.ai/details/publication/pub.1039092128


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