Exchange bias study of sub-100 nm-diameter CoFeB/IrMn antidot and nanodot arrays fabricated by nanosphere lithography

Li, X.; Leung, Chi Wah; Chiu, Chun-Cheng; Lin, Keng‐Pei; Chan, Mansun; Zhou, Yan; Pong, Philip W. T.

doi:10.1016/j.physleta.2017.06.010

Cited by 7 publications

(1 citation statement)

References 63 publications

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“…1(b). The ring-shaped pinning layer may be realized by the deposition of heavy metals (such as Hf), metallic oxides (such as MgO or Al 2 O 3 ) [33], or permanent magnetic nanoparticles [36][37][38]. We assume an ideal situation in which the magnetization of the bottom ferromagnet is coerced in a specific direction.…”

Section: Theoretical Modelmentioning

confidence: 99%

Stabilization of Skyrmions in a Nanodisk Without an External Magnetic Field

Akosa

Peng

et al. 2020

Phys. Rev. Applied

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We study, in the absence of a magnetic field, the stability of skyrmions in a disk-shaped ferromagnetic multilayer in the presence of locally pinned spins at the edge. This particular boundary condition suppresses the formation of helical states yet enhances the stabilization of states with rotational symmetry, such as Néel skyrmions. Numerical simulation shows that the size of the disk is a viable parameter to control the creation and annihilation of skyrmionic states. We also find that the demagnetization field renormalizes the Dzyaloshinskii-Moriya interaction. This study opens an alternative avenue to the generation, stabilization, and control of magnetic skyrmions in field-free heterostructures.

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