Location of proton and structural relaxation in a perovskite-type proton conductor

Shimoyama, Tomotaka*; Tojo, Takeo*; Kawaji, Hitoshi*; Atake, Toru*; Fukazawa, Hiroshi; Igawa, Naoki

Proton conductor BaZr $_{0.8}$ Sc $_{0.2}$ O $_{2.9}$ was synthesized by a solid state reaction method. Neutron diffraction experiments were performed for dried and D $_{2}$ O dissolute samples at 10 K. The observed data were analyzed by Rietveld method and Maximum Entropy method. It has been clarified that the deuterium exits at 12 site. It is founded that the distance between oxide ion site and deuterium site is shorter than the normal distance of O-D.

Language	:	Japanese
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Meeting title	:	第33回固体イオニクス討論会
Held date	:	2007/12
Location (city)	:	名古屋
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Registration No. : BB20072608
JAEA Abstracts No. :
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