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Chapter and Conference Paper
Electron precession characterization of pseudo-merohedral twins in the LaGaO3 perovskite
Pseudo-merohedric twins are frequently observed in the orthorhombic LaGaO3 perovskite [1] because this perovskite displays some very small symmetry departures from an ideal cubic ABO3 perovskite. The characteriza...
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Chapter and Conference Paper
Contribution of electron precession to the study of crystals displaying small symmetry departures
Many crystals display some small symmetry departures from a high symmetry. For example, a crystal has a tetragonal or an orthorhombic structure very close to a cubic structure. In this case, many zone axis ele...