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Twinning in Ti 4 O 7
Author(s) -
Hodeau J. L.,
Marezio M.,
Schlenker C.,
Buder R.,
Lakkis S.
Publication year - 1976
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889876011680
Subject(s) - crystal twinning , triclinic crystal system , crystallography , orthorhombic crystal system , materials science , crystal structure , chemistry , microstructure
Twinning has been studied in Ti 4 O 7 crystals. It has been found that they are twinned by reticular pseudomerohedry. The sublattice controlling the twinning has an orthorhombic pseudosymmetry and is obtained from the triclinic cell ( a = 5.593, b = 7.125, c = 12.456 Å, α = 95.02, β = 95.21, γ = 108.83°) by means of the transformation ( a / b / c )* (½½½/½02/½2) ( a / b / c )* triclinic. The effect of the twinning on the electron paramagnetic resonance spectra is also reported.