NDLI: Magnetic Properties of Zn-Ferrites Obtained From Multilayer Film Deposited by Sputtering

Content Provider	IEEE Xplore Digital Library
Author	Salcedo Rodriguez, K.L. Golmar, F. Rodriguez Torres, C.E.
Copyright Year	1965
Abstract	Epitaxial ZnFe₂O₄ thin films were deposited on monocrystalline MgO substrate by dc-sputtering. Ferrites were grown from Zn-O and Fe-O multilayers starting from metallic targets in oxygen atmosphere. The number and thickness of layers were varied holding constant the total thickness (50 nm) and sample stoichiometry (Fe/Zn=2). The samples were structural and magnetically characterized by X-ray diffraction and magnetic measurements, respectively. Thin film fabricated using 20 bilayers of thickness 3 nm present a magnetic behavior similar to bulk ZnFe₂O₄, with a Néel temperature T_N=10.5 K. The magnetic behavior of those films obtained from thicker bilayers (6 and 10 nm) is characterized by the coexistence of antiferro and ferromagnetic regions. This is probably due to the inhomogeneities in Zn and Fe distributions caused by an incomplete interdiffusion process prevented by the relatively large multilayer thickness. These inhomogeneities probably generate zinc-iron position replacements and interrupt the long-range antiferromagnetic order, giving rise to ferromagnetic clusters coexisting with the antiferromagnetic component.
Sponsorship	IEEE Magnetics Society
Starting Page	4559
Ending Page	4561
Page Count	3
File Size	412697
File Format	PDF
ISSN	00189464
Volume Number	49
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ferrites Zinc Magnetic multilayers Nonhomogeneous media Iron Superconducting magnets Temperature measurement magnetic analysis Diluted antiferromagnetism (DAFF) system dc-sputtering ferrite film
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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