Spin-Torque Excitation of Perpendicular Standing Spin Waves in Coupled Heterostructures

S Klingler, V Amin, S Geprägs, K Ganzhorn… - Physical review …, 2018 - APS
We investigate yttrium iron garnet (YIG)/cobalt (Co) heterostructures using broadband
ferromagnetic resonance (FMR). We observe an efficient excitation of perpendicular …

Experimental observation of flat bands in one-dimensional chiral magnonic crystals

S Tacchi, J Flores-Farías, D Petti, F Brevis… - Nano Letters, 2023 - ACS Publications
Spin waves represent the collective excitations of the magnetization field within a magnetic
material, providing dispersion curves that can be manipulated by material design and …

Spin-wave non-reciprocity in magnetization-graded ferromagnetic films

RA Gallardo, P Alvarado-Seguel… - New Journal of …, 2019 - iopscience.iop.org
A theoretical approach has been developed to study the spin-wave dynamics of
magnetization-graded ferromagnetic films, where the magnetic properties change along the …

Spin waves in meander shaped YIG film: Toward 3D magnonics

VK Sakharov, EN Beginin, YV Khivintsev… - Applied Physics …, 2020 - pubs.aip.org
We report on the experimental observation of a spin wave (SW) propagation in a magnetic
film lying on a developed surface—a three-dimensional (3D) magnonic structure. The 3D …

Origin of strong two-magnon scattering in heavy-metal/ferromagnet/oxide heterostructures

L Zhu, L Zhu, DC Ralph, RA Buhrman - Physical Review Applied, 2020 - APS
We experimentally investigate the origin of two-magnon scattering (TMS) in heavy-metal
(HM)/ferromagnet (FM)/oxide heterostructures (FM= Co, Ni 81 Fe 19, or Fe 60 Co 20 B 20) …

Dipolar interaction induced band gaps and flat modes in surface-modulated magnonic crystals

RA Gallardo, T Schneider, A Roldán-Molina, M Langer… - Physical Review B, 2018 - APS
Theoretical results for the magnetization dynamics of a magnonic crystal formed by grooves
on the surface of a ferromagnetic film, called a surface-modulated magnonic crystal, are …

Terahertz spin-transfer torque oscillator based on a synthetic antiferromagnet

H Zhong, S Qiao, S Yan, L Liang, Y Zhao… - Journal of Magnetism and …, 2020 - Elsevier
Abstract Bloch-Bloembergen-Slonczewski equation is adopted to simulate magnetization
dynamics in spin-valve based spin-transfer torque oscillator with synthetic antiferromagnet …

Selective nonreciprocal localization of flat magnonic modes induced by a periodic Dzyaloshinskii-Moriya interaction

J Flores-Farías, D Cortés-Ortuño, F Brevis, P Landeros… - Physical Review B, 2024 - APS
Spin waves excited in periodically modulated magnetic nanomaterials, known as magnonic
crystals, exhibit characteristic band structures. These bands can be tuned by material …

Spin-wave modes in transition from a thin film to a full magnonic crystal

M Langer, RA Gallardo, T Schneider, S Stienen… - Physical Review B, 2019 - APS
Surface-modulated magnonic crystals are the natural link between continuous films with
sinusoidal spin-wave eigenmodes and one-dimensional magnonic crystals composed of …

On the limits of uniaxial magnetic anisotropy tuning by a ripple surface pattern

MA Arranz, JM Colino, FJ Palomares - Journal of Applied Physics, 2014 - pubs.aip.org
Ion beam patterning of a nanoscale ripple surface has emerged as a versatile method of
imprinting uniaxial magnetic anisotropy (UMA) on a desired in-plane direction in magnetic …