656 citations · 2.1k across the 27 of their papers we have counts for
7 papers · 1 filter
Controlling the phase locking of unstable magnetic bits for ultra-low power computation
A. Mizrahi, N. Locatelli, R. Lebrun +6
When fabricating magnetic memories, one of the main challenges is to maintain the bit stability while downscaling. Indeed, for magnetic volumes of a few thousand nm3, the energy ba…
Noise-enhanced synchronization of stochastic magnetic oscillators
Nicolas Locatelli, Alice Mizrahi, Artur Accioloy +9
We present an experimental study of phase-locking in a stochastic magnetic oscillator. The system comprises a magnetic tunnel junction with a superparamagnetic free layer, whose ma…
Spin torque building blocks
Nicolas Locatelli, Vincent Cros, Julie Grollier
The discovery of the spin torque effect has made magnetic nanodevices realistic candidates for active elements of memory devices and applications. Magnetoresistive effects allow th…
Origin of spectral purity and tuning sensitivity in a vortex-based spin transfer nano-oscillator
A. Hamadeh, Grégoire De Loubens, Olivier Klein +5
We investigate the microwave characteristics of a spin transfer nano-oscillator (STNO) based on coupled vortices as a function of the perpendicular magnetic field . While…
Identification and selection rules of the spin-wave eigen-modes in a normally magnetized nano-pillar
Vladimir V. Naletov, Grégoire De Loubens, Gonçalo Albuquerque +12
We report on a spectroscopic study of the spin-wave eigen-modes inside an individual normally magnetized two layers circular nano-pillar (PermalloyCopperPermalloy) by means o…
Dynamics of two coupled vortices in a spin valve nanopillar excited by spin transfer torque
N. Locatelli, V. V. Naletov, J. Grollier +7
We investigate the dynamics of two coupled vortices driven by spin transfer. We are able to independently control with current and perpendicular field, and to detect, the respectiv…
Non-uniformity of a planar polarizer as a reason of spin-transfer induced vortex oscillations at zero field
A. V. Khvalkovskiy, J. Grollier, N. Locatelli +3
We discuss a possible mechanism of the spin-transfer induced oscillations of a vortex in the free layer of spin-valve nanostructures, in which the polarizer layer has a planar magn…