Size-driven domain reorientation in hydrothermally derived lead titanate nanoparticles
High-resolution transmission electron microscopy studies of hydrothermally derived platelike lead titanate nanoparticles reveal that below a critical size of approximately 70 nm, the single ferroelectric domain polarization axis reorients from perpendicular to parallel to the plate. We suggest that...
Saved in:
Published in | Journal of materials research Vol. 20; no. 3; pp. 558 - 562 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York, USA
Cambridge University Press
01.03.2005
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | High-resolution transmission electron microscopy studies of hydrothermally derived platelike lead titanate nanoparticles reveal that below a critical size of approximately 70 nm, the single ferroelectric domain polarization axis reorients from perpendicular to parallel to the plate. We suggest that during particle growth, ions in the hydrothermal processing medium compensate for the ferroelectric depolarization energy. When the processing medium is removed by washing and drying, single domain nanoparticles minimize their depolarization energy by c-axis flipping. |
---|---|
Bibliography: | ArticleID:08436 ark:/67375/6GQ-KNC834WM-V PII:S0884291400084363 istex:97CDBD83B39893E5E2AAF4A0525940B100ED6E9F ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0884-2914 2044-5326 |
DOI: | 10.1557/JMR.2005.0097 |