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Anatomy and giant enhancement of the perpendicular magnetic anisotropy of cobalt-graphene heterostructures
Hongxin Yang, Anh Duc Vu, Ali Hallal +5
We report strongly enhanced perpendicular magnetic anisotropy (PMA) of Co films by graphene coating from both first-principles and experiments. Our calculations show that graphene…
Origin of interfacial perpendicular magnetic anisotropy in MgO/CoFe/metallic capping layer structures
Shouzhong Peng, Mengxing Wang, Hongxin Yang +9
Spin-transfer-torque magnetic random access memory (STT-MRAM) attracts extensive attentions due to its non-volatility, high density and low power consumption. The core device in ST…
Respective influence of in-plane and out-of-plane spin-transfer torques in magnetization switching of perpendicular magnetic tunnel junctions
A. A. Timopheev, R. Sousa, M. Chshiev +2
The relative contributions of in-plane (damping-like) and out-of-plane (field-like) spin-transfer-torques in the magnetization switching of out-of-plane magnetized magnetic tunnel…
Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
Hongxin Yang, André Thiaville, Stanislas Rohart +2
The Dzyaloshinskii-Moriya Interaction (DMI) between spins is induced by spin-orbit coupling in magnetic materials lacking inversion symmetry. DMI is recognized to play a crucial ro…
Band edge noise spectroscopy of a magnetic tunnel junction
Farkhad G. Aliev, Juan Pedro Cascales, Ali Hallal +2
We propose a conceptually new way to gather information on the electron bands of buried metal(semiconductor)/insulator interfaces. The bias dependence of low frequency noise in Fe$…