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Content Provider | IEEE Xplore Digital Library |
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Author | Bandyopadhyay, A.K. Rios, S.E. Fritz, S. Garcia, J. Contreras, J. Gutierrez, C.J. |
Copyright Year | 1965 |
Abstract | We report the fabrication of polycrystalline and epitaxial Bi-substituted yttrium gallium iron garnet films on amorphous oxide coated Si wafers and single crystalline gadolinium gallium garnet (GGG) substrates for potential magnetic photonic device applications via reactive ion beam sputtering of a single phase (Bi/sub 0.8/Y/sub 2.2/)(Ga/sub 1/Fe/sub 4/)O/sub 12/ target. The observed Bi-YIG film magnetic properties are sensitive to sputtering parameters like the reactive molecular oxygen ion or radical neutral oxygen atom flux substrate impingement, and the specular or nonspecular geometry control of the reflected neutral substrate bombardment. Nonferrimagnetic amorphous Bi-YIG films are obtained using the specular sputtering geometry that can be recrystallized as randomly oriented single-phase YIG films with in-plane anisotropy using post-deposition rapid thermal annealing (RTA). Also, nonspecularly sputtered Bi-YIG films with improved interfaces and weak nanocrystallinity can be fabricated, yielding "as grown" ferrimagnetic behavior that can be further improved by RTA. Epitaxial Bi-YIG films on GGG with extremely soft magnetic characteristics and strong in-plane anisotropy have also been fabricated. |
Sponsorship | IEEE Magnetics Society |
Starting Page | 2805 |
Ending Page | 2807 |
Page Count | 3 |
File Size | 172258 |
File Format | |
ISSN | 00189464 |
Volume Number | 40 |
Issue Number | 4 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2004-07-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Ion beams Magnetic films Ferrimagnetic films Optical films Amorphous magnetic materials Magnetic anisotropy Perpendicular magnetic anisotropy Magnetic flux Soft magnetic materials Substrates |
Content Type | Text |
Resource Type | Article |
Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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