The Structure and Magnetic Properties of Mn-Zn Ferrite Thin Films Fabricated by Electroless Plating in Aqueous Solution

Fashen LI
Jianrong SUN
Xuewen WANG
Jianbo WANG

Publication
IEICE TRANSACTIONS on Electronics   Vol.E90-C    No.8    pp.1561-1564
Publication Date: 2007/08/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e90-c.8.1561
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress of High-Density Information Storage)
Category: 
Keyword: 
thin films,  electroless plating,  Mn-Zn ferrite,  magnetic properties,  CEMS,  high frequency,  

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Summary: 
Mn1-xZnxFe2O4 thin films with various Zn contents, 300 nm in thickness, were synthesized on glass substrates directly by electroless plating in aqueous solution at 90 without a heat treatment. With XRD, SEM, VSM, the crystallographic structure, morphology of the films and the macroscopic magnetic properties were characterized. The Mn-Zn ferrite films have a single phase spinel structure and well-crystallized columnar grains grow perpendicularly to the substrate. The change of the coercivity is not consistent with that of the bulk materials. As the Zn content in the films increases, the value of Hc decreases firstly, and then increases. At x=0.5, the minimum value of Hc is 3.7 kA/m and the value of Ms is 419.6 kA/m. The hyperfine magnetic fields, cation occupations and the distribution of the magnetic moments in film plane were studied by the conversion electron Mossbauer spectroscopy (CEMS).