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Substituted Barium Hexaferrite Films for Planar Integrated Phase Shifters

Published online by Cambridge University Press:  10 February 2011

S.A. Oliver ,
S.D. Yoon ,
I. Kozulin ,
P. Shi ,
X. Zuo  and
C. Vittoria
S.A. Oliver
Affiliation:
Center for Electromagnetic Research, Northeastern University, Boston MA 02115, saoliver@neu.edu
S.D. Yoon
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115
I. Kozulin
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115
P. Shi
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115
X. Zuo
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115
C. Vittoria
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115
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Abstract

Thick films of scandium-substituted BaScxFe12−xO19 (x=0, 0.4, 0.6) were deposited by pulsed laser ablation deposition onto A-plane (1120) sapphire (Al2O3) substrates to yield highly oriented films having the crystallographic c-axis ([0001]) in the film plane. Selected films were characterized by x-ray diffraction, electron microscopy, magnetometry and torque magnetometry measurements. These structural and magnetic measurements show that dense films have excellent in-plane uniaxial anisotropies and good square loop behaviors. Such films will be useful for planar latched phase shifters that can be integrated into microwave integrated circuits.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 603: Symposium KK – Materials Issues for Tunable RF & Microwave Devices , 1999 , 101
Copyright
Copyright © Materials Research Society 2000

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References

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