Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 505, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2020.166709
Keywords
Perpendicular magnetic anisotropy; Heusler alloys; Co55Mn25Si20; NiO
Funding
- Natural Science Foundation of Shandong Province, China [ZR2018MEM004]
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This paper carries out research on perpendicular magnetic anisotropy (PMA) of the Pd/Co55Mn25Si20(CMS)/NiO trilayer stack, which is a structure innovatively combining heavy metal (HM)/ferromagnetic (FM) interface (Pd/CMS), FM/oxide interface (CMS/NiO), and FM/antiferromagnetic (AFM) interface (CMS/NiO). The maximum effective PMA energy, obtained from the Pd (6 nm)/Co 55 Mn25Si20(5.5 nm)/NiO(1.0 nm) trilayer film which is sputter-deposited on glass at a substrate temperature of 350 degrees C, is 0.695 Merg/cm(3). By appropriately increasing the Co content, a wider FM layer thickness range (3-8 nm) that achieved PMA was obtained. The oxide in the traditional FM/oxide structure was replaced by the antiferromagnetic NiO to obtain a wider oxide layer thickness of 0.4-7.6 nm, or even wider.
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