Propagating backward-volume spin waves in epitaxial Fe films
Source abstract
Abstract
The propagation characteristics of backward-volume magnetostatic spin-waves in epitaxial Fe(001) films were studied by frequency-domain and time-domain spin-wave propagation spectroscopies using a vector network analyser. Due to the combination of cubic-magnetocrystalline anisotropy and anisotropic spin-wave dispersion, the backward-volume spin-wave exhibited a complicated packet propagation. For the hard-axis propagation, the group velocity of the spin wave was greatly enhanced at low external magnetic fields and propagation occurred even under no magnetic field. By analysing within a theoretical model and micromagnetic simulations, these transmission character of the backward-volume magnetostatic spin-waves in an epitaxial iron film was well reproduced. The observed characteristics are essential information to promote two-dimensional magnonic devices utilizing cubic-anisotropic materials.
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Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic Properties and Applications · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School of Engineering Science, Yokohama National University 1 , Tokiwadai 79-5, Yokohama 240-8501, Japan
National Institute for Materials Science 2 , Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan
Faculty of Engineering, Yokohama National University 3 , Tokiwadai 79-5, Yokohama 240-8501, Japan
Funding
Japan Society for the Promotion of Science
References (23)
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