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Tailoring magnetic insulator proximity effects in graphene: First-principles calculations
A. Hallal, F. Ibrahim, H. X. Yang +2
We report a systematic first-principles investigation of the influence of different magnetic insulators on the magnetic proximity effect induced in graphene. Four different magneti…
Giant variation of the perpendicular magnetic anisotropy at Fe/MgO interfaces by oxygen migration: a first-principles study
F. Ibrahim, A. Hallal, B. Dieny +1
A characteristic dependence of voltage control of perpendicular magnetic anisotropy (VCMA) on oxygen migration at Fe/MgO interfaces was revealed by performing systematic {\it ab in…
Long range phase coherencein double barrier magnetic tunnel junctions with large thick metallic quantum well
B. S. Tao, H. X. Yang, Y. L. Zuo +11
Double barrier heterostructures are model systems for the study of electron tunneling and discrete energy levels in a quantum well (QW). Until now resonant tunneling phenomena in m…
Controlling Dzyaloshinskii-Moriya Interaction via Chirality Dependent Layer Stacking, Insulator Capping and Electric Field
Hongxin Yang, Olivier Boulle, Vincent Cros +2
Using first-principle calculations, we demonstrate several approaches to manipulate Dzyaloshinskii-Moriya Interaction (DMI) in ultrathin magnetic films. First, we find that DMI is…
Second order anisotropy contribution in perpendicular magnetic tunnel junctions
A. A. Timopheev, R. Sousa, M. Chshiev +2
Magnetoresistance loops under in-plane applied field were measured on perpendicularly magnetized magnetic tunnel junction (pMTJ) pillars with nominal diameters ranging from 50 to 1…
Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
Olivier Boulle, Jan Vogel, Hongxin Yang +16
Magnetic skyrmions are chiral spin structures with a whirling configuration. Their topological properties, nanometer size and the fact that they can be moved by small current densi…