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Title: Preparation of GdIG:Bi single crystals by crucible rotation flux method

Abstract

GdIG single crystals with Bi substituted were grown by the crucible rotation flux method to reduce the optical absorption loss in the near infrared range. This loss is a serious problem with rare earth iron garnets used for optical isolators. The grown crystals have extremely few carriers, and the resistances are in the range 10/sup 9/ to 10/sup 12/ ..cap omega..-cm as compared with 10/sup 6/ ..cap omega..-cm for crystals prepared by the conventional technique. It is thought that the oxygen defects, i.e., amount of resultant Fe/sup 2+/, in the GdIG:Bi single crystals grown by this method will be significantly lower than that in similar crystals prepared by the conventional method. The optical absorption loss was one third that of the optical loss in crystals grown by the conventional flux method.

Authors:
; ;
Publication Date:
Research Org.:
Electrotechnical Lab., Sakura-mura, Ibaraki
OSTI Identifier:
5852763
Resource Type:
Journal Article
Journal Name:
IEEE Trans. J. Magn. Jpn.; (United States)
Additional Journal Information:
Journal Volume: TJMJ-2:2
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BISMUTH; CRYSTAL GROWTH; GADOLINIUM; GARNETS; IODINE; CHEMICAL PREPARATION; COMPARATIVE EVALUATIONS; CRYSTAL GROWTH METHODS; INFRARED RADIATION; IRON; LOSSES; MONOCRYSTALS; OPTICAL PROPERTIES; OXYGEN; STRUCTURAL CHEMICAL ANALYSIS; CRYSTALS; ELECTROMAGNETIC RADIATION; ELEMENTS; HALOGENS; METALS; MINERALS; NONMETALS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; RARE EARTHS; SILICATES; SILICON COMPOUNDS; SYNTHESIS; TRANSITION ELEMENTS; 360602* - Other Materials- Structure & Phase Studies

Citation Formats

Hayashi, K, Okuda, T, and Koshizuka, N. Preparation of GdIG:Bi single crystals by crucible rotation flux method. United States: N. p., 1987. Web. doi:10.1109/TJMJ.1987.4549360.
Hayashi, K, Okuda, T, & Koshizuka, N. Preparation of GdIG:Bi single crystals by crucible rotation flux method. United States. https://doi.org/10.1109/TJMJ.1987.4549360
Hayashi, K, Okuda, T, and Koshizuka, N. Sun . "Preparation of GdIG:Bi single crystals by crucible rotation flux method". United States. https://doi.org/10.1109/TJMJ.1987.4549360.
@article{osti_5852763,
title = {Preparation of GdIG:Bi single crystals by crucible rotation flux method},
author = {Hayashi, K and Okuda, T and Koshizuka, N},
abstractNote = {GdIG single crystals with Bi substituted were grown by the crucible rotation flux method to reduce the optical absorption loss in the near infrared range. This loss is a serious problem with rare earth iron garnets used for optical isolators. The grown crystals have extremely few carriers, and the resistances are in the range 10/sup 9/ to 10/sup 12/ ..cap omega..-cm as compared with 10/sup 6/ ..cap omega..-cm for crystals prepared by the conventional technique. It is thought that the oxygen defects, i.e., amount of resultant Fe/sup 2+/, in the GdIG:Bi single crystals grown by this method will be significantly lower than that in similar crystals prepared by the conventional method. The optical absorption loss was one third that of the optical loss in crystals grown by the conventional flux method.},
doi = {10.1109/TJMJ.1987.4549360},
url = {https://www.osti.gov/biblio/5852763}, journal = {IEEE Trans. J. Magn. Jpn.; (United States)},
number = ,
volume = TJMJ-2:2,
place = {United States},
year = {1987},
month = {2}
}