We have the pleasure to welcome Jacob Torrejon from SPEC, CEA Saclay, France. He will give us a seminar at CEA/IRIG, Bat 1005, room 445 entitled :

Chiral magnetism controlled by spin-orbit torques and spin-torque nano-oscillators: From magnetic memories to neuromorphic computing

Electrical manipulation of the magnetization (uniform or magnetic textures) by spin- polarized current is essential for developing advanced storage class memory devices [1]. In ultrathin magnetic heterostructures with large spin-orbit coupling and broken inversion symmetry (ultrathin magnetic layer attached to heavy metal underlayer), new mechanisms has emerged based on spin-orbit coupling phenomena which exhibits much higher efficiency than conventional spin transfer torque mechanism in magnetic tunnel junction [2]. Key to the power efficient magnetization control is the large spin-orbit coupling of the heterostructure.  [read more]