Low-damping spin-wave propagation in a micro-structured Co 2Mn 0.6Fe 0.4Si Heusler waveguide

T. Sebastian, Y. Ohdaira, T. Kubota, P. Pirro, T. Brächer, K. Vogt, A. A. Serga, H. Naganuma, M. Oogane, Y. Ando, B. Hillebrands

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67 Citations (Scopus)

Abstract

We report on the investigation of spin-wave propagation in a micro-structured Co 2Mn 0.6Fe 0.4Si (CMFS) Heusler waveguide. The reduced magnetic losses of this compound compared to the commonly used Ni 81Fe 19 allow for the observation of spin-wave propagation over distances as high as 75 m via Brillouin light scattering (BLS) microscopy. In the linear regime, a maximum decay length of 16.7 m of the spin-wave amplitude was found. The coherence length of the observed spin-wave modes was estimated to be at least 16 m via phase-resolved BLS techniques.

Original languageEnglish
Article number112402
JournalApplied Physics Letters
Volume100
Issue number11
DOIs
Publication statusPublished - 2012 Mar 12

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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