Hydrogen annealing effects on the optical absorption loss and lattice constant of Ca-doped YIG and BiGdAlGaIG films

Journal Article · Fri Jan 01 00:00:00 EST 1988 · IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/TJMJ.1988.4563648· OSTI ID:6910512

Yokoyama, Y; Koshizuka, N ^[1]

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1. Electrotechnical Lab (JP)

The effects of annealing in an H{sub 2} atmosphere on the optical absorption losses and lattice constants of Ca- and Si-doped YIG and Ca-doped (BiGd){sub 3}(FeAlGa){sub 5}O{sub 12} films grown by LPE, were studied. Hydrogen annealing was carried out at 150 to 500{degrees}C for 22 hours. The absorption losses and lattice constants in YIG films with poor impurities or with Si doping did not change with H{sub 2} annealing at 150 to 450{degrees}C; however, the values in Ca-doped YIG and Bi-substituted garnet films changed notably. The changes in absorption loss are explained by the reduction of Fe ions. The results presented show that H{sub 2} annealing is effective for obtaining iron garnet films with a high figure of merit.

• OSTI ID: 6910512
• Journal Information: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA), Vol. 3:1; ISSN 0882-4959
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM OXIDES
SUPERCONDUCTIVITY
BISMUTH OXIDES
GADOLINIUM OXIDES
GALLIUM OXIDES
SUPERCONDUCTING FILMS
OPTICAL PROPERTIES
YTTRIUM OXIDES
ABSORPTION SPECTRA
ANNEALING
CALCIUM ADDITIONS
FABRICATION
GARNETS
HYDROGEN EMBRITTLEMENT
LATTICE PARAMETERS
LIQUID PHASE EPITAXY
SILICON ADDITIONS
ALLOYS
ALUMINIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM ALLOYS
CHALCOGENIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EMBRITTLEMENT
EPITAXY
FILMS
GADOLINIUM COMPOUNDS
GALLIUM COMPOUNDS
HEAT TREATMENTS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SILICATES
SILICON ALLOYS
SILICON COMPOUNDS
SPECTRA
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
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