Abstract
In improper ferroelectrics with the two-component order parameter (GMO-type) linear topological defects (circulation lines) are possible. They divide the regions of the rotational antiphase boundary with the different sense of rotation or correspond to a juncture of the antiphase boundary with the two polarization boundaries. It is shown that there exists a force applied to these lines due to the Lifshitz invariant induced by the shear strain. It is proposed to use this force for a selective influence on the antiphase boundaries. The domain structure of improper ferroelectrics was an object of thorough theoretical and experimental investigations (see e.g.1 and the references therein). This paper is devoted to theoretical investigation of linear topological defects in improper ferroelectrics with the two-component order parameter (GMO-type).
Original language | English |
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Pages (from-to) | 297-300 |
Number of pages | 4 |
Journal | Ferroelectrics |
Volume | 98 |
Issue number | 1 |
DOIs | |
State | Published - 1 Oct 1989 |
Externally published | Yes |