High-performance shape-anisotropy magnetic tunnel junctions down to 2.3 nm

B **nai, J Igarashi, K Watanabe… - 2020 IEEE …, 2020 - ieeexplore.ieee.org
We show scalability down to 2.3 nm and high performance at single-digit nanometers of
shape-anisotropy magnetic tunnel junctions (MTJs) employing a multilayered ferromagnetic …

Magnon-magnon coupling in synthetic ferrimagnets

A Sud, K Yamamoto, KZ Suzuki, S Mizukami… - Physical Review B, 2023 - APS
Magnetic multilayers with interlayer exchange coupling have been widely studied for both
static and dynamic regimes. Their dynamical responses depend on the exchange coupling …

Enhanced thermally-activated skyrmion diffusion with tunable effective gyrotropic force

T Dohi, M Weißenhofer, N Kerber… - Nature …, 2023 - nature.com
Magnetic skyrmions, topologically-stabilized spin textures that emerge in magnetic systems,
have garnered considerable interest due to a variety of electromagnetic responses that are …

Control of the noncollinear interlayer exchange coupling

ZR Nunn, C Abert, D Suess, E Girt - Science Advances, 2020 - science.org
Interlayer exchange coupling in transition metal multilayers has been intensively studied for
more than three decades and is incorporated into almost all spintronic devices. With the …

Advanced Modeling and Simulation of Multilayer Spin–Transfer Torque Magnetoresistive Random Access Memory with Interface Exchange Coupling

M Bendra, RL Orio, S Selberherr, W Goes, V Sverdlov - Micromachines, 2024 - mdpi.com
In advancing the study of magnetization dynamics in STT-MRAM devices, we employ the
spin drift–diffusion model to address the back-hop** effect. This issue manifests as …

Coupled skyrmion breathing modes in synthetic ferri-and antiferromagnets

M Lonsky, A Hoffmann - Physical Review B, 2020 - APS
We present micromagnetic simulations of the dynamic GHz-range resonance modes of
skyrmions excited by either out-of-plane AC magnetic fields or spin torques in prototypical …

Magnetization dynamics in synthetic antiferromagnets: Role of dynamical energy and mutual spin pum**

S Sorokin, RA Gallardo, C Fowley, K Lenz, A Titova… - Physical Review B, 2020 - APS
We investigate magnetization dynamics in asymmetric interlayer exchange coupled
Py/Ru/Py trilayers using both vector network analyzer–based and electrically detected …

Spacer layer thickness and temperature dependence of interlayer exchange coupling in Co/Ru/Co trilayer structures

T McKinnon, B Heinrich, E Girt - Physical Review B, 2021 - APS
In this paper, we measure the bilinear interlayer magnetic coupling J 1 between two Co
layers coupled across a Ru spacer layer over a wide range of spacer layer thicknesses from …

Strong magnon-magnon coupling between ferromagnetic resonances in multilayers

K Ma, C Li, Z Hao, CK Ong, G Chai - Physical Review B, 2023 - APS
We investigate the magnon-magnon coupling between the ferromagnetic resonances
(FMRs) from different ferromagnetic layers in Co 90 Zr 10 (100 nm)/Ta/Fe 20 Ni 80 (100 nm) …

[HTML][HTML] Enhancing spin-transfer torque in magnetic tunnel junction devices: Exploring the influence of cap** layer materials and thickness on device characteristics

T Sadat Parvini, E Paz, T Böhnert… - Journal of Applied …, 2023 - pubs.aip.org
We have developed and optimized two categories of spin-ransfer torque magnetic tunnel
junctions (STT-MTJs) that exhibit a high tunnel magnetoresistance ratio, low critical current …