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 …

Bias-driven high-power microwave emission from MgO-based tunnel magnetoresistance devices

AM Deac, A Fukushima, H Kubota, H Maehara… - Nature Physics, 2008 - nature.com
Spin-momentum transfer between a spin-polarized current and a ferromagnetic layer can
induce steady-state magnetization precession, and has recently been proposed as a …

Spin transfer induced coherent microwave emission with large power from nanoscale MgO tunnel junctions

D Houssameddine, SH Florez, JA Katine… - Applied Physics …, 2008 - pubs.aip.org
In low resistance-area product MgO magnetic tunnel junction nanopillars, we observe high
integrated power (up to 43 nW), narrow linewidth (down to 10 MHz), spin transfer induced …

High-power coherent microwave emission from magnetic tunnel junction nano-oscillators with perpendicular anisotropy

Z Zeng, PK Amiri, IN Krivorotov, H Zhao, G Finocchio… - ACS …, 2012 - ACS Publications
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 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 …

Quantitative measurement of voltage dependence of spin-transfer torque in MgO-based magnetic tunnel junctions

H Kubota, A Fukushima, K Yakushiji, T Nagahama… - Nature Physics, 2008 - nature.com
When an electric current passes from one ferromagnetic layer via a non-magnetic layer into
another ferromagnetic layer, the spin polarization and subsequent rotation of this current can …

Nonlinear amplification of microwave signals in spin-torque oscillators

K Zhu, M Carpentieri, L Zhang, B Fang, J Cai… - Nature …, 2023 - nature.com
Spintronics-based microwave devices, such as oscillators and detectors, have been the
subject of intensive investigation in recent years owing to the potential reductions in size and …

Ultralow-current-density and bias-field-free spin-transfer nano-oscillator

Z Zeng, G Finocchio, B Zhang, PK Amiri, JA Katine… - Scientific reports, 2013 - nature.com
The spin-transfer nano-oscillator (STNO) offers the possibility of using the transfer of spin
angular momentum via spin-polarized currents to generate microwave signals. However, at …

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 …

Measurement of the spin-transfer-torque vector in magnetic tunnel junctions

JC Sankey, YT Cui, JZ Sun, JC Slonczewski… - Nature Physics, 2008 - nature.com
The transfer of spin angular momentum from a spin-polarized current to a ferromagnet can
generate sufficient torque to reorient the magnet's moment. This torque could enable the …