The effects of the sputtering conditions on bismuth doped gadolinium iron garnet films
1989; IEEE Magnetics Society; Volume: 25; Issue: 5 Linguagem: Inglês
10.1109/20.42419
ISSN1941-0069
Autores Tópico(s)Phytoplasmas and Hemiptera pathogens
ResumoThe effects of sputtering conditions on the magnetic and magnetooptic properties of bismuth-substituted gadolinium-iron-garnet (GdIG) films were studied. GdIG films with uniaxial perpendicular anisotropy and room-temperature coercivities greater than 1 kOe were deposited on glass substrates by RF magnetron sputtering. These films have Faraday rotations ( theta /sub f/) between 0.6 degrees / mu m and 1.3 degrees / mu m and temperature-dependent coercivities similar to those of rare earth-transition metal alloys. Increasing the RF power or argon bleeding pressure results in an increase in the compensation temperature with little change in the Curie temperature (T/sub c/). A negative substrate bias lowers T/sub c/, lowers theta /sub f/, and raises the crystallization temperature. >
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