Magnetic vortex oscillator driven by dc spin-polarized current

VS Pribiag, IN Krivorotov, GD Fuchs, PM Braganca… - Nature physics, 2007 - nature.com
Transfer of angular momentum from a spin-polarized current to a ferromagnet provides an
efficient means to control the magnetization dynamics of nanomagnets. A peculiar …

Microwave oscillations of a nanomagnet driven by a spin-polarized current

SI Kiselev, JC Sankey, IN Krivorotov, NC Emley… - nature, 2003 - nature.com
The recent discovery that a spin-polarized electrical current can apply a large torque to a
ferromagnet, through direct transfer of spin angular momentum, offers the possibility of …

Current-driven resonant excitation of magnetic vortices

S Kasai, Y Nakatani, K Kobayashi, H Kohno, T Ono - Physical Review Letters, 2006 - APS
A magnetic vortex core in a ferromagnetic circular nanodot has a resonance frequency
originating from the confinement of the vortex core. By the micromagnetic simulation …

Nanowire spin torque oscillator driven by spin orbit torques

Z Duan, A Smith, L Yang, B Youngblood… - Nature …, 2014 - nature.com
Spin torque from spin current applied to a nanoscale region of a ferromagnet can act as
negative magnetic damping and thereby excite self-oscillations of its magnetization. In …

Large microwave generation from current-driven magnetic vortex oscillators in magnetic tunnel junctions

A Dussaux, B Georges, J Grollier, V Cros… - Nature …, 2010 - nature.com
Spin-polarized current can excite the magnetization of a ferromagnet through the transfer of
spin angular momentum to the local spin system. This pure spin-related transport …

Vortex oscillations induced by spin-polarized current in a magnetic nanopillar: Analytical versus micromagnetic calculations

AV Khvalkovskiy, J Grollier, A Dussaux, KA Zvezdin… - Physical Review B …, 2009 - APS
We investigate the vortex excitations induced by a spin-polarized current in a magnetic
nanopillar by means of micromagnetic simulations and analytical calculations. Damped …

Magnetic vortex dynamics induced by an electrical current

Y Gaididei, VP Kravchuk… - International Journal of …, 2010 - Wiley Online Library
A magnetic nanoparticle in a vortex state is a promising candidate for the information
storage. One bit of information corresponds to the upward or downward magnetization of the …

Shaped angular dependence of the spin-transfer torque and microwave generation without magnetic field

O Boulle, V Cros, J Grollier, LG Pereira, C Deranlot… - Nature Physics, 2007 - nature.com
The generation of oscillations in the microwave frequency range is one of the most important
applications expected from spintronics devices exploiting the spin-transfer phenomenon …

Excitations of incoherent spin-waves due to spin-transfer torque

KJ Lee, A Deac, O Redon, JP Nozieres, B Dieny - Nature Materials, 2004 - nature.com
The possibility of exciting microwave oscillations in a nanomagnet by a spin-polarized
current, as predicted by Slonczewski and Berger, has recently been demonstrated. This …

Magnetization oscillations and waves driven by pure spin currents

VE Demidov, S Urazhdin, G De Loubens, O Klein… - Physics Reports, 2017 - Elsevier
Recent advances in the studies of pure spin currents–flows of angular momentum (spin) not
accompanied by the electric currents–have opened new horizons for the emerging …