Moessbauer Study of Electrodeposited Fe/Fe-Oxide Multilayers

Journal Article · Tue Apr 26 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1923657· OSTI ID:20722137

Kuzmann, E; Homonnay, Z; Klencsar, Z; Vertes, A ^[1]; Lakatos-Varsanyi, M; Miko, A ^[2]; Varga, L K; Kalman, E ^[3]; Nagy, F ^[4]

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1. Department of Nuclear Chemistry, HAS, Eoetvoes University, Budapest, H-1518 P.O.B. 32 (Hungary)
2. Bay Zoltan Institute for Material Science, Fehervari ut 130, Budapest (Hungary)
3. Research Institute for Solid State Physics and Optics, 1525 Budapest, P.O.B. 49 (Hungary)
4. Chemical Research Center of the Hungarian Academy of Sciences, Institute of Chemistry, P.O. Box 17, Budapest, H-1525 (Hungary)

Iron has been deposited electrochemically by short current pulses in Na-saccharin containing FeII-chloride and sulphate solution electrolytes. Combined electrochemical techniques with initial pulse plating of iron nanolayer and its subsequent anodic oxidation under potential control have been used for production of Fe/Fe-oxide multilayers. 57Fe CEM spectra of pulse plated iron revealed the presence of a minor doublet attributed mainly to {gamma}-FeOOH in addition to the dominant sextet of {alpha}-iron. In the case of anodically oxidized pulse plated iron and of samples after repeated deposition of anodically oxidized pulse plated iron an additional minor doublet, assigned to ferrous chloride, also appears in the Moessbauer spectra. A significant change in the magnetic anisotropy of {alpha}-iron was observed with the anodic oxidation. The thickness of the layers were estimated from the CEM spectrum data by a modified computer program of the Liljequist method. The coercive field and the power loss versus frequency data showed that the pulse plated iron cores are good inductive elements up to several kHz frequencies.

• OSTI ID: 20722137
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 765; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
CHLORIDES
COMPUTER CODES
ELECTROLYTES
ELECTROPLATING
IRON 57
IRON OXIDES
IRON-ALPHA
KHZ RANGE
LAYERS
MOESSBAUER EFFECT
NANOSTRUCTURES
OXIDATION
PULSES
SACCHARIN
SOLUTIONS
SPECTRA
SULFATES
THICKNESS