The excitation of the steady-state precessions of magnetization opens a new way for
nanoscale microwave oscillators by exploiting the transfer of spin angular momentum from a …

Magnetic vortex dynamics in thin films is characterized by gyrotropic motion, the sense of
gyration depending on the vortex core polarity, which reverses when a critical velocity is …

Phase locking dynamics of dipolarly coupled vortices excited by spin-polarized current in
two identical nanopillars is studied as a function of the interpillar distance L. Numerical study …

We derive an analytical model to describe the nonlinear vortex dynamics driven by spin-
transfer torque in nanopillar systems. We consider the nonlinearity arising from the …

Spin-transfer torques in magnetic heterostructures give rise to a number of dynamical
processes that are not accessible with magnetic fields alone. A prominent example involves …

A spin vortex consists of an in-plane curling magnetization and a small core region (~ 10
nm) with out-of-plane magnetization. An oscillating field or current induce gyrotropic …

We report on a magnetic field sensor based on CoFeB/MgO/CoFeB magnetic tunnel
junctions. By taking advantage of the perpendicular magnetic anisotropy of the MgO/CoFeB …

We present an experimental study on the frequency tunability of a perpendicular spin
transfer torque oscillator with a perpendicularly magnetized (Co/Pd) 5 reference electrode …

Using nonlinear dynamical systems theory, we analytically studied a spin-torque device in
which the magnetization of the polarizer (the fixed layer) is tilted at an arbitrary angle out of …

We report a chemical method to prepare metallic Fe porous nanocubes. The presence of
pores embedded inside the cubes was attested by electron tomography. Thanks to …