Transmission-electron-microscopy observation of the memory effect through the pattern of discommensurations in barium sodium niobate
- 1 June 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 35 (16), 8884-8887
- https://doi.org/10.1103/physrevb.35.8884
Abstract
We report the first observation in direct space of a manifestation of the memory effect specific to incommensurate (INC) materials. It is found, using transmission electron microscopy, that barium sodium niobate samples cooled rapidly after annealing in the INC phase exhibit at room temperature two distinct regions with different configurations and spacings of discommensurations. These results are correlated to x-ray diffraction data.Keywords
This publication has 10 references indexed in Scilit:
- A TEM study of the incommensurate phase and related phase transitions in barium sodium niobatephysica status solidi (a), 1985
- The Direct Observation of “Discommensurations” in Barium Sodium Niobate (BSN) and Its Homologuesphysica status solidi (a), 1985
- Influence of a Frozen Defects Density Wave on the Incommensurate Modulation in Barium Sodium NiobateJapanese Journal of Applied Physics, 1985
- Incommensurate Phases of QuartzJapanese Journal of Applied Physics, 1985
- Kinetic characteristics of the thermal hysteresis in an incommensurate systemJournal de Physique Lettres, 1984
- Theory of the memory effect in thiourea. Defect density waves in modulated systemsJournal de Physique Lettres, 1984
- Pinning effects in incommensurately modulated structuresJournal of Physics C: Solid State Physics, 1983
- Observation of a new memory effect in a modulated structureJournal de Physique Lettres, 1983
- Neutron scattering study of the tetragonal-to-incommensurate ferroelastic transition in barium sodium niobatePhysical Review B, 1982
- Incommensurate phases in barium sodium niobatePhysical Review B, 1981