Crystal Sturcture of Ferroelectric PbZr_<0.9>Ti_<0.1>O_3 Studied by X-Ray and Neutron Diffraction Profile Analysis Method
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概要
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A previously proposed model of rhombohedral PbZr...Ti...0. (low tempera-lure form) has been confirmed and refined at room temperature. X-ray diffractiondata as well as neutron diffraction data of PbZr...Ti...0. powder have beenanalysed by profile analysis tnethod. The result is jt? general agreement with thatby Glazer and Mabud, and the structural paramc+ters are now improved con-siderably. Rather unrealistic temperature param<:ters founcl in the previousstudy are corrected. Oxygen c>ctahedra in the perovskite type unit cell rotatealternately clockwise and anticlockwise by 5.7 degrees about The polar axis, thusa superstructure appears. Additional atomic shifts (Pb 0.49 A, Zr/Ti 0.22Awith respect to oxygen) make tire crystal ferroelectric, and the crystal is a struc-tural hybrid of LaAl0. type and of rhombohed?=al ferroelectric Basic. type.
- 社団法人日本物理学会の論文
- 1983-03-15
著者
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SAWAGUCHI Etsuro
Department of Physics,Faculty of Science,Hokkaido University
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Sawaguchi Etsuro
Department Of Physics Faculty Of Science Hokkaido University
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Ito Hiroshi
Department Of Cardiovascular And Respiratory Medicine Akita University Graduate School Of Medicine
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Shiozaki Yoichi
Department Of Physics Faculty Of Science Hokkaido University
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Ito Hiroshi
Department Neurosurgery Tokyo Medical College
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