6533b7d2fe1ef96bd125f454

RESEARCH PRODUCT

Low-damping spin-wave propagation in a micro-structured Co2Mn0.6Fe0.4Si Heusler waveguide

Philipp PirroHiroshi NaganumaYasuo AndoThomas BrächerThomas BrächerYusuke OhdairaK. VogtK. VogtT. SebastianT. SebastianMikihiko OoganeBurkard HillebrandsTakahide KubotaAlexander A. Serga

subject

Materials sciencePhysics and Astronomy (miscellaneous)business.industryLight scatteringlaw.inventionCoherence lengthBrillouin zoneAmplitudeOpticsSpin wavelawDecay lengthMicroscopyCondensed Matter::Strongly Correlated ElectronsbusinessWaveguide

description

We report on the investigation of spin-wave propagation in a micro-structured Co2Mn0.6Fe0.4Si (CMFS) Heusler waveguide. The reduced magnetic losses of this compound compared to the commonly used Ni81Fe19 allow for the observation of spin-wave propagation over distances as high as 75 μm via Brillouin light scattering (BLS) microscopy. In the linear regime, a maximum decay length of 16.7 μm of the spin-wave amplitude was found. The coherence length of the observed spin-wave modes was estimated to be at least 16 μm via phase-resolved BLS techniques.

yearjournalcountryeditionlanguage
2012-03-12Applied Physics Letters
https://doi.org/10.1063/1.3693391