Ultrafast Magnetoelastic Probing of Surface Acoustic Transients
arXiv:1601.04350 · doi:10.1103/PhysRevB.94.024415
Abstract
We generate in-plane magnetoelastic waves in nickel films using the all-optical transient grating technique. When performed on amorphous glass substrates, two dominant magnetoelastic excitations can be resonantly driven by the underlying elastic distortions, the Rayleigh Surface Acoustic Wave and the Surface Skimming Longitudinal Wave. An applied field, oriented in the sample plane, selectively tunes the coupling between magnetic precession and one of the elastic waves, thus demonstrating selective excitation of coexisting, large amplitude magnetoelastic waves. Analytical calculations based on the Green's function approach corroborate the generation of the non-equilibrium surface acoustic transients.
References in corpus (10)
- Emergence of the persistent spin helix in semiconductor quantum wells
- Surface Acoustic Wave-Driven Ferromagnetic Resonance in Nickel Thin Films: Theory and Experiment
- Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing
- The marriage of plasmonics, magnetism, acoustics and ultrafast optics
- Coherent magnetization precession in ferromagnetic (Ga,Mn)As induced by picosecond acoustic pulses
- Ultrafast Magneto-Acoustics in Nickel Films
- Magnetization switching by ultrashort acoustic pulses
- Irreversible magnetization switching using surface acoustic waves
- Magnetization precession induced by quasi-transverse picosecond strain pulses in (311) ferromagnetic (Ga,Mn)As
- Theory of magnetization precession induced by a picosecond strain pulse in ferromagnetic semiconductor (Ga,Mn)As
Cited by in corpus (18)
- Advances in coherent coupling between magnons and acoustic phonons
- Frequency and wavenumber selective excitation of spin waves through coherent energy transfer from elastic waves
- Parametric frequency mixing in the magneto-elastically driven FMR-oscillator
- Nonlinear acousto-magneto-plasmonics
- Anatomy of inertial magnons in ferromagnets
- Broadband magnetoelastic coupling in magphonic crystals for high-frequency nanoscale spin wave generation
- Generation of exchange magnons in thin ferromagnetic films by ultrashort acoustic pulses
- Driving magnetization dynamics in an on-demand magnonic crystal by magneto-elastic interaction
- Nondestructive femtosecond laser lithography of Ni nanocavities by controlled thermo-mechanical spallation at the nanoscale
- Anatomy of ultrafast quantitative magneto-acoustics in freestanding nickel thin films
- Spatio-temporal coherent control of thermal excitations in solids
- Thermoelastic enhancement of the magnonic spin Seebeck effect in thin films and bulk samples
- Phase-resolved Spin-Wave Tomography
- Quantitative disentanglement of coherent and incoherent laser-induced surface deformations by time-resolved x-ray reflectivity
- Magnetically-tunable cutoff in asymmetric thin metal film plasmonic waveguide
- Impact of a monolayer on the nanoscale thermoelastic response of silicon heterostructures
- Ultra-high frequency magnetic resonance through strain-spin coupling in perpendicular magnetic multi-layers
- Resonant phonon-magnon interactions in free-standing metal-ferromagnet multilayer structures