Exploiting spin fluctuations for enhanced pure spin current

PH Wu, D Qu, YC Tu, YZ Lin, CL Chien, SY Huang - Physical Review Letters, 2022 - APS
We demonstrate the interplay of pure spin current, spin-polarized current, and spin
fluctuation in 3 d Ni x Cu 1− x. By tuning the compositions of the Ni x Cu 1− x alloys, we …

High-throughput techniques for measuring the spin Hall effect

M Meinert, B Gliniors, O Gueckstock, TS Seifert… - Physical Review …, 2020 - APS
The spin Hall effect in heavy-metal thin films is routinely used to convert charge currents into
transverse spin currents and can be used to exert torque on adjacent ferromagnets …

Spin-orbit torques originating from the bulk and interface in Pt-based structures

H Hayashi, A Musha, H Sakimura, K Ando - Physical Review Research, 2021 - APS
We investigate spin-orbit torques in prototypical Pt-based spintronic devices. We find that, in
Pt/Ni and Pt/Fe bilayers, the dampinglike torque efficiency depends on the thickness of the …

Efficient and temperature-independent terahertz emission from CoFeB/NiCu heterostructures

H Cheng, Y Wang, H He, Q Huang, Y Lu - Physical Review B, 2022 - APS
Spintronic terahertz (THz) emission has been investigated in ferromagnetic (FM)
metal/nonmagnetic (NM) metal, FM/semiconductor, and FM/topological insulator systems …

Large Spin-Orbit-Torque Efficiency Generated by Spin Hall Effect in Paramagnetic -- Alloys

Y Hibino, T Taniguchi, K Yakushiji, A Fukushima… - Physical Review …, 2020 - APS
The spin Hall effect is a major source of spin-orbit torques (SOTs), which allow efficient
electrical manipulation of magnetization. So far, the spin Hall effect has been investigated …

Charge-spin interconversion in epitaxial Pt probed by spin-orbit torques in a magnetic insulator

P Li, LJ Riddiford, C Bi, JJ Wisser, XQ Sun… - Physical Review …, 2021 - APS
We measure spin-orbit torques (SOTs) in a model system of all-epitaxial ferrite/Pt bilayers to
gain insights into charge-spin interconversion in Pt. With negligible electronic conduction in …

[HTML][HTML] Spin pumping at interfaces with ferro-and paramagnetic Fe60Al40 films acting as spin source and spin sink

T Strusch, K Lenz, R Meckenstock, R Bali… - Journal of Applied …, 2022 - pubs.aip.org
We present a study of spin pumping efficiency and determine the spin mixing conductance
and spin diffusion length in thin bilayer films based on 3d transition metal alloy Fe 60 Al 40 …

Spin wave excitations in a nanowire spin Hall oscillator with perpendicular magnetic anisotropy

M Succar, M Haidar - Journal of Applied Physics, 2023 - pubs.aip.org
Spin torque oscillators (STOs) are emerging microwave devices that can potentially be used
in spin-logic devices and the next-generation high-speed computing architecture. Thanks to …

Compositional effect on auto-oscillation behavior of Ni100− xFex/Pt spin Hall nano-oscillators

M Haidar, H Mazraati, P Dürrenfeld, H Fulara… - Applied Physics …, 2021 - pubs.aip.org
We demonstrate the compositional effect on the magnetodynamic and auto-oscillation
properties of Ni 100− x Fe x/Pt (x= 10–40) nanoconstriction-based spin Hall nano-oscillators …

Electrical measurement of the spin Hall effect isotropy in ferromagnets with strong spin-orbit interactions

M Cosset-Chéneau, MH Fahmy, A Kandazoglou… - Physical Review B, 2022 - APS
The spin-dependent transport properties of paramagnetic metals are roughly invariant under
rotation. By contrast, in ferromagnetic materials, the magnetization breaks the rotational …