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Growth of Bi12GeO20 crystal rods and fibers by the improved floating zone method

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Abstract

Single-crystal rods and fibers of Bi12GeO20 (BGO) of various sizes were successfully grown from a rod of mixed Bi2O3 and GeO2 by the improved floating zone device. The grown stoichiometric BGO crystal has a lattice constant of 10.14388±0.00001 Å, a uniform composition along the axial position. For a nonstoichiometric crystal, its lattice constant decreases and its transmittance increase with the concentration of GeO2 up to the stoichiometry.

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Authors and Affiliations

  1. Institute of Advanced Material Study,, Kyushu University,, Kasuga Koen 6-1,, Fukuoka, 816,, Japan

    S. Fu & H. Ozoe

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  1. S. Fu
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  2. H. Ozoe
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Correspondence to H. Ozoe.

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Fu, S., Ozoe, H. Growth of Bi12GeO20 crystal rods and fibers by the improved floating zone method. Journal of Materials Science 34, 283–290 (1999). https://doi.org/10.1023/A:1004430311364

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