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Narrow-Linewidth Yttrium Iron Garnet Films for Heterogeneous Integration

Published online by Cambridge University Press:  10 February 2011

M. Levy ,
R.M. Osgood Jr. ,
F. J. Rachford ,
A. Kumar  and
H. Bakhru
M. Levy
Affiliation:
Applied Physics Department, Columbia University, New York, NY 10027
R.M. Osgood Jr.
Affiliation:
Applied Physics Department, Columbia University, New York, NY 10027
F. J. Rachford
Affiliation:
Naval Research Laboratory, Washington, DC 20375
A. Kumar
Affiliation:
Physics Department, SUNY at Albany, Albany, NY 12222
H. Bakhru
Affiliation:
Physics Department, SUNY at Albany, Albany, NY 12222
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Abstract

We report on the fabrication and characterization of single-crystal films of yttrium iron garnet (YIG) for heterogeneous integration onto growth-incompatible substrates. The process entails the implantation of energetic helium ions into the material, resulting in the formation of a fast etching sacrificial layer. Separation from the growth substrate is followed by an annealing step, yielding a ferromagnetic resonance (FMR) linewidth of 0.70 Oe from a virgin sample of linewidth 0.55 Oe. Magnetization measurements show a distinct softening of the in-plane response to an applied field.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 603: Symposium KK – Materials Issues for Tunable RF & Microwave Devices , 1999 , 119
Copyright
Copyright © Materials Research Society 2000

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References

1 Levy, M., Osgood, R.M. Jr., Kumar, A., Bakhru, H., Appl. Phys. Lett. 71, 2617 (1997).10.1063/1.120192Google Scholar