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Anisotropy Coupling in Patterned Thin Films with Mixed Uniaxial Anisotropies

Journal of Magnetics, Volume 19, Number 3, 30 Sep 2014, Pages 232-236
Yoon Jae Nam (Department of Nano Semiconductor Engineering, Korea University), Tae Young Lee (Department of Nano Semiconductor Engineering, Korea University), Sang Ho Lim * (Department of Nano Semiconductor Engineering, Korea University)
Abstract

Anisotropy coupling in thin films with mixed induced and shape anisotropies is investigated. A 200-nm-thick Co-Fe-Pd-B thin film with a large induced anisotropy of 57 Oe is fabricated and then patterned into micronsized cells to provide shape anisotropy, whose strength has a similar magnitude to that of the induced anisotropy for enhancing the anisotropy coupling. The angles between the two mixed anisotropies considered are 0°, 90°, and 110°. Hysteresis loops measured under in-plane magnetic fields along various directions indicate no anisotropy coupling behaviour for all the three angles examined in this study.

 

Keywords: anisotropy coupling; mixed anisotropies; Co-Fe-Pd-B thin film; patterned magnetic cells
DOI: http://dx.doi.org/10.4283/JMAG.2014.19.3.232
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