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Direct observation of the Dzyaloshinskii-Moriya interaction in a Pt/Co/Ni film.
The interfacial Dzyaloshinskii-Moriya interaction in an in-plane anisotropic Pt(4  nm)/Co(1.6  nm)/Ni(1.6  nm) film has been directly observed by Brillouin spectroscopy. It is manifested as theExpand
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Observation of frequency band gaps in a one-dimensional nanostructured magnonic crystal
We report the experimental observation of band gaps in a synthetic nanostructured magnonic crystal composed of two different magnetic materials. The sample, in the form of a one-dimensional periodicExpand
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Asymmetric spin-wave dispersion due to Dzyaloshinskii-Moriya interaction in an ultrathin Pt/CoFeB film
Employing Brillouin spectroscopy, strong interfacial Dzyaloshinskii-Moriya interactions have been observed in an ultrathin Pt/CoFeB film. Our micromagnetic simulations show that spin-waveExpand
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Enhancement of spin-wave nonreciprocity in magnonic crystals via synthetic antiferromagnetic coupling
Spin-wave nonreciprocity arising from dipole-dipole interaction is insignificant for magnon wavelengths in the sub-100 nm range. Our micromagnetic simulations reveal that for the nanoscale magnonicExpand
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Angular dispersion of surface acoustic waves on (001), (110), and (111) GaAs
The generalized surface, pseudosurface, and high-frequency pseudosurface acoustic waves propagating on (001), (110), and (111) surfaces of GaAs have been examined using Brillouin spectroscopy. TheExpand
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Nanostructured magnonic crystals with size-tunable bandgaps.
Just as a photonic crystal is a periodic composite composed of materials with different dielectric constants, its lesser known magnetic analogue, the magnonic crystal can be considered as a periodicExpand
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Broadband femtosecond sum-frequency spectroscopy of CO on Ru1010 in the frequency and time domains.
CO on Ru[1010] was investigated by broadband femtosecond sum-frequency spectroscopy at 200 K. Approximately half of the frequency shift of 71 cm(-1) over the coverage range from 0.15 to 1.22Expand
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Band structures of exchange spin waves in one-dimensional bi-component magnonic crystals
We present the micromagnetic study of magnonic band structures for exchange spin waves propagating in one-dimensional magnonic crystals. The crystals are of laterally patterned periodic arrays ofExpand
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Collective spin waves in high-density two-dimensional arrays of FeCo nanowires.
Brillouin measurements have been made of the spin dynamics of high-density two-dimensional hexagonally ordered 20 nm diameter Fe48Co52 nanowire arrays, with various interwire spacings, as a functionExpand
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In situ characterization of ultrafast laser pulses for sum frequency surface studies
Femtosecond laser pulses used for studies of metal surfaces in ultrahigh vacuum can be characterized by sum frequency generation. Deposition of an ultrathin alkali metal film enhances the surfaceExpand
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