Abstract
A transmission electron microscopy study of two B-site order perovskites Pb(Co1/2W1/2)O3 and Pb(Sc1/2Ta1/2)O3 has revealed evidence for an incommensurate phase within the antiferroelectric and ferroelectric phase, respectively. Direct observations by dark field techniques have revealed discommensurate structures in both Pb(Sc1/2Ta1/2)O3 and Pb(Co1/2W1/2)O3. A possible lock-in transition is found in Pb(Sc1/2Ta1/2)O3, but the incommensurate to commensurate transition seems to be dependent on the degree of B-site order.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 413-416 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 40 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1989 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics