Journal Article/Contribution to a conference proceedings

FZJ-2017-01403

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Magnetic microstructure in a stress-annealed Fe $_{73.5}$ Si $_{15.5}$ B $_{7}$ Nb $_{3}$ Cu $_{1}$ soft magnetic alloy observed using off-axis electron holography and Lorentz microscopy

Kovács, A. (Corresponding author)FZJ* ; Pradeep, K. G. ; Herzer, G. ; Raabe, D. ; Dunin-Borkowski, R.FZJ*

2016
American Inst. of Physics New York, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/13703  doi:10.1063/1.4942954

Abstract: Fe-Si-B-Nb-Cu alloys are attractive for high frequency applications due to their low coercivity and high saturation magnetization. Here, we study the effect of stress annealing on magnetic microstructure in Fe73.5Si15.5B7Nb3Cu1 using off-axis electron holography and the Fresnel mode of Lorentz transmission electron microscopy. A stress of 50 MPa was applied to selected samples during rapid annealing for 4 s, resulting in uniaxial anisotropy perpendicular to the stress direction. The examination of focused ion beam milled lamellae prepared from each sample revealed a random magnetic domain pattern in the sample that had been rapidly annealed in the absence of stress, whereas a highly regular domain pattern was observed in the stress-annealed sample. We also measured a decrease in domain wall width from ∼ 94 nm in the sample annealed without stress to ∼ 80 nm in the stress-annealed sample.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)
2. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2016

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Database coverage:
; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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