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Materials structure physics on ferroelectric titanates and their aerosol deposition films using synchrotron radiation X-ray diffraction
概要
§1.1.1. Perovskite-type oxides
A perovskite-type oxide is a general term for oxides that have the same crystal structure
as calcium titanate (CaTiO3) which is known as the mineral name for perovskite. The
general formula for perovskite oxides is represented by ABO3. A and B are cations and O
is oxygen. The crystal structure with the highest symmetry is the cubic phase (space
group: Pm3m), with A atom at the corner of the unit cell, B atom at the body center
position, and O atom at the face center positions. Fig. 1.1.1 shows the crystal structure of
the perovskite-type oxide in the cubic phase. The A-site atom is surrounding by 12
oxygens. The B-site atom is surrounded by 6 oxygens and forms a BO6 octahedron centerd
on the B atom. ...
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