Abstract
Thin-film specimens of amorphous Co₇₄Fe₆B₁₅Si₅ were subjected to heat-treatment procedures followed by room-temperature magnetic and structural characterization in an effort to quantitatively correlate magnetic property changes to local atomic structure. Fourier transforms of electron-yield extended x-ray-absorption fine structure spectra show second and higher atomic shell ordering about transition-metal ions to occur at Tann ≈300°C. This ordering evolves to a body-centered atomic structure with heat treatments at higher temperatures. Accompanying this structural evolution is an expansion of the nearest-neighbor distance, disruption of the spin-wave-resonance spectra, and general deterioration of the soft magnetic properties.
Keywords
spin-wave resonance, local atomic structure, electron yield exafs, Co₇₄Fe₆B₁₅Si₅, heat treatment
Subject Categories
Thin films, Spin waves, Magnetic properties, Extended X-ray absorption fine structure, Fourier transformations
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
4-15-1991
Rights Information
Copyright 1991 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Harris, V. G.; Oliver, S. A.; Nowak, W. B.; Vittoria, C.; Kim, K. H.; and Elam, W. T., "Correlation of magnetic-properties and local atomic-structure observed by electron-yield exafs in amorphous Co₇₄Fe₆B₁₅Si₅ thin-films" (1991). Electrical and Computer Engineering Faculty Publications. Paper 30. http://hdl.handle.net/2047/d20002200
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Notes
Originally published in Journal of Applied Physics 69, 5457 (1991). DOI:10.1063/1.348008 (http://dx.doi.org/10.1063/1.348008).