Effect of Tilted Magnetic Anisotropy on the Deterministic Current-Induced Magnetization Reversal in Quasi-Perpendicularly Magnetized Ta/Pt/CoFeB/Pt Multilayers

Guddeti, Sreekar; Gopi, Ajesh K.; Kumar, Prajwal

doi:10.1109/tmag.2018.2850759

Cited by 6 publications

(2 citation statements)

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“…A MATLAB program was used to determine the domain wall velocity from consecutive pulses. The detailed measurement technique is also described by Guddeti et al 21…”

Section: Methodsmentioning

confidence: 99%

“…Structural inversion asymmetry at the HM/FM interface introduces iDMI in the FM layer that is known to stabilize chiral Néel walls [7][8][9][10] in PMA systems, magnetic skyrmions, 11,12 and many other spin textures. Spin-polarized current from heavy metal provides spin-orbit torque (SOT) that helps us to achieve high domain wall (DW) velocity [13][14][15] and current-induced magnetization reversal of the FM layer's magnetization with [15][16][17][18] or without [19][20][21][22][23] bias magnetic field in HM/FM/HM trilayers.…”

Section: Introductionmentioning

confidence: 99%

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Domain wall chirality reversal by interfacial engineering in Pt/Co/Pt based perpendicularly magnetized systems

Maji

Mukhopadhyay

Kayal

et al. 2023

Journal of Applied Physics

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Heavy metal/ferromagnet interfaces in systems with perpendicular magnetic anisotropy (PMA) hosts chiral Néel wall with the assistance of interfacial Dzyaloshinskii–Moriya interaction (iDMI). We have investigated field induced domain wall motion in the creep regime to estimate the effective iDMI strength, [Formula: see text] of sputter-deposited Ta/Pt/Co/Pt and Ta/Pt/Co/Au/Pt thin films that exhibit PMA. Two similar Pt/Co interfaces on either side of the Co layer in the Ta/Pt/Co/Pt system lead to a small [Formula: see text] with a negative sign that supports the Néel type domain wall of right-handed chirality. Ultrathin Au layers of different thicknesses have been deposited at the top Co/Pt interface to introduce asymmetry around the Co layer and control the [Formula: see text]. Here, two interfaces (Pt/Co and Au/Co) of opposite iDMI polarity have been chosen to invert the domain wall chirality to the left-handed chirality instead of the right-handed chirality found in the Ta/Pt/Co/Pt system.

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“…A MATLAB program was used to determine the domain wall velocity from consecutive pulses. The detailed measurement technique is also described by Guddeti et al 21…”

Section: Methodsmentioning

confidence: 99%