Perpendicular magnetic anisotropy of cobalt films intercalated under graphene

Abstract

Magnetic properties of nanometer thick Co films intercalated at the graphene/Ir(111) interface are investigated using spin-polarized low-energy electron microscopy (SPLEEM) and Auger electron spectroscopy. We show that the graphene top layer promotes perpendicular magnetic anisotropy in the Co film underneath, even for relatively thick intercalated deposits. The magnetic anisotropy energy is significantly larger for the graphene/Co interface than for the free Co surface. Hybridization of the graphene and Co electron orbitals is believed to be at the origin of the observed perpendicular magnetic anisotropy.

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• Unravelling Dzyaloshinskii-Moriya interaction and chiral nature of Graphene/Cobalt interface
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• Graphene as a Mechanically Active, Deformable Two-Dimensional Surfactant
• Intrinsic mixed Bloch-Néel character and chirality switch of skyrmions in asymmetric epitaxial trilayer
• Towards Non-Volatile Spin Orbit Devices: Deposition of Ferroelectric Hafnia on Monolayer Graphene/Co/HM Stacks
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• Non-uniform magnetic field as a booster for quantum speed limit: faster quantum information processing
• Intercalating cobalt between graphene and iridium (111): a spatially-dependent kinetics from the edges
• Giant and anisotropic enhancement of spin-charge conversion in double Rashba interface graphene-based quantum system
• Spin-dependent $\pi$${\pi }^{\ast }$ gap in graphene on a magnetic substrate
• Confined step-flow growth of Cu intercalated between graphene and a Ru(0001) surface
• Impact of organic capping layer on the magnetic anisotropy of ultrathin Co films