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- Title
Evolution of domains and thermal hysteresis effects in the pyrochlore-structure ferroelectric Cd[sub 2]Nb[sub 2]O[sub 7].
- Authors
Kolpakova, N. N.; Shul’pina, I. L.; Shchepan’ska, L.; Piskunovich, P.
- Abstract
An analysis of the thermally induced domain behavior in Cd[sub 2]Nb[sub 2]O[sub 7] under cooling and heating in the dark has revealed that below T[sub c] the coexistence of ferroelectric-ferroelastic domains of different types is accompanied by irreversible changes in the domains of the previous phase (T[sub c] < T< T[sub s]). Interaction of domains with dislocations and other lattice defects causes thermal hysteresis in the phase transition region near T[sub s] and T[sub c] typical of the "superheated" ferroic state. An analysis of the thermally induced domain behavior in Cd[sub 2]Nb[sub 2]O[sub 7] under cooling and heating in the dark has revealed that below T[sub c] the coexistence of ferroelectric-ferroelastic domains of different types is accompanied by irreversible changes in the domains of the previous phase (T[sub c] < T< T[sub s]). Interaction of domains with dislocations and other lattice defects causes thermal hysteresis in the phase transition region near T[sub s] and T[sub c] typical of the "superheated" ferroic state.
- Subjects
HYSTERESIS; FERROMAGNETISM; CRYSTAL defects
- Publication
Technical Physics Letters, 1997, Vol 23, Issue 12, p972
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/1.1261950