Journal Article

IMPULSE-2020-00334

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Self-Diffusion in $^{57}$Fe/$^{nat}$Fe Multilayers by In Situ Neutron Reflectometry

Sajti, S. ; Bottyán, L.MLZ* ; Moulin, J.-F.MLZ* ; Paul, A. (Corresponding author)

2020
Springer Science+Business Media Berlin

Please use a persistent id in citations: doi:10.1134/S1027451020070460

Abstract: Time-of-flight in situ neutron reflectometry (i-NR) on Si/[57Fe(x nm)/natFe(x nm)]4/Pt with x = 4 and 8 nm multilayers during consecutive heat treatments at 423, 448, 473 and 498 K reveal an unexpected rearrangement of free volumes and an interface smoothening in the isotopic Fe multilayer below 473 K, before the regime of regular Bragg intensity decay starts. The bilayer period dependence of the diffusivities at around 500 K, however, does not follow predictions of Harrison’s theory for the C-type regime representing grain boundary diffusion.

Keyword(s): Basic research (1st) ; Materials Science (2nd)

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Contributing Institute(s):

1. REFSANS (REFSANS)

Experiment(s):

1. REFSANS: Horizontal TOF Reflectometer with GISANS option (NL2b)

Appears in the scientific report 2020

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Database coverage:
Clarivate Analytics Master Journal List ; DEAL Springer ; Emerging Sources Citation Index ; SCOPUS ; Web of Science Core Collection

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