Domain wall chirality reversal by interfacial engineering in Pt/Co/Pt based perpendicularly magnetized systems
نویسندگان
چکیده
Heavy metal/ferromagnet interfaces in systems with perpendicular magnetic anisotropy (PMA) hosts chiral Néel wall the assistance of interfacial Dzyaloshinskii–Moriya interaction (iDMI). We have investigated field induced domain motion creep regime to estimate effective iDMI strength, [Formula: see text] sputter-deposited Ta/Pt/Co/Pt and Ta/Pt/Co/Au/Pt thin films that exhibit PMA. Two similar Pt/Co on either side Co layer system lead a small negative sign supports type right-handed chirality. Ultrathin Au layers different thicknesses been deposited at top Co/Pt interface introduce asymmetry around control text]. Here, two (Pt/Co Au/Co) opposite polarity chosen invert chirality left-handed instead found system.
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2023
ISSN: ['1089-7550', '0021-8979', '1520-8850']
DOI: https://doi.org/10.1063/5.0117198