A MODEL STRUCTURE OF THE MECHANICAL TWIN IN STOICHIOMETRIC LITHIUM-NIOBATE SINGLE-CRYSTAL

Authors
PARK BM KITAMURA K TERABE K FURUKAWA Y SUZUKI E
Citation
Bm. Park et al., A MODEL STRUCTURE OF THE MECHANICAL TWIN IN STOICHIOMETRIC LITHIUM-NIOBATE SINGLE-CRYSTAL, Philosophical magazine letters, 77(1), 1998, pp. 17-21
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Philosophical magazine letters → ACNP
ISSN journal
09500839
Volume
77
Issue
1
Year of publication
1998
Pages
17 - 21
Database
ISI
SICI code
0950-0839(1998)77:1<17:AMSOTM>2.0.ZU;2-X
Abstract
The geometry and atomic structure of the mechanical twin boundary in L iNbO3 have been investigated. A possible structural model of this mech anical twin is derived and compared with the observed structure. The s tructure of the mechanical twin in stoichiometric LiNbO3 is coherent a nd its composition plane is one of the {012} planes. This mechanical t win can be explained by a twin model of slip between the two Nb-centre d octahedral layers and a slight distortion of each octahedron.