Field dependence of spin-transfer-induced vortex dynamics in the nonlinear regime
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 …
transfer torque in nanopillar systems. We consider the nonlinearity arising from the …
Array of synchronized nano-oscillators based on repulsion between domain wall and skyrmion
Spin-transfer nano-oscillators (STNOs) are nanosized microwave signal generators based
on spin-transfer torque and the magnetoresistance effect. So far, the low output power of …
on spin-transfer torque and the magnetoresistance effect. So far, the low output power of …
Phase locking dynamics of dipolarly coupled vortex-based spin transfer oscillators
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 …
two identical nanopillars is studied as a function of the interpillar distance L. Numerical study …
Response to noise of a vortex based spin transfer nano-oscillator
We investigate experimentally and analytically the impact of thermal noise on the sustained
gyrotropic mode of vortex magnetization in spin transfer nano-oscillators and its …
gyrotropic mode of vortex magnetization in spin transfer nano-oscillators and its …
Electrical control of magnetism by electric field and current-induced torques
While early magnetic memory designs relied on magnetization switching by locally
generated magnetic fields, key insights in condensed matter physics later suggested the …
generated magnetic fields, key insights in condensed matter physics later suggested the …
[HTML][HTML] Spintronic devices as next-generation computation accelerators
The ever increasing demand for computational power combined with the predicted plateau
for the miniaturization of existing silicon-based technologies has made the search for low …
for the miniaturization of existing silicon-based technologies has made the search for low …
[HTML][HTML] Dynamic excitations of chiral magnetic textures
M Lonsky, A Hoffmann - APL Materials, 2020 - pubs.aip.org
Spin eigenexcitations of skyrmions and related chiral magnetic textures have attracted
considerable interest over the recent years owing to their strong potential for applications in …
considerable interest over the recent years owing to their strong potential for applications in …
Hardware realization of the multiply and accumulate operation on radio-frequency signals with magnetic tunnel junctions
Artificial neural networks are a valuable tool for radio-frequency (RF) signal classification in
many applications, but the digitization of analog signals and the use of general purpose …
many applications, but the digitization of analog signals and the use of general purpose …
Microwave emission power exceeding 10 μW in spin torque vortex oscillator
S Tsunegi, K Yakushiji, A Fukushima, S Yuasa… - Applied Physics …, 2016 - pubs.aip.org
We fabricated vortex-type spin-torque oscillators (STOs) with optimized structures to
enhance the microwave emission power. Inserting a thin Co 70 Fe 30 layer between the …
enhance the microwave emission power. Inserting a thin Co 70 Fe 30 layer between the …
Magnetic tunnel junctions with single-layer-graphene tunnel barriers
We report on the fabrication and characterization of magnetic tunnel junctions consisting of a
single layer of graphene as the tunnel barrier, sandwiched between two metallic …
single layer of graphene as the tunnel barrier, sandwiched between two metallic …