Lehman, J.H. and Pannell, C.N. (2003) Position and temperature dependence of pyroelectricity in domain-engineered stoichiometric and congruent LiTaO3. Ferroelectrics, 297 . pp. 39-55. ISSN 0015-0193 .
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Abstract
Domain-engineered bicell (parallel compensated) pyroclectric detectors were constructed from stoichiometric and congruent lithium tantalate. The variation of the pyroelectric current response of these detectors was investigated as a function of temperature and position. We define a pyroelectric response gradient Pi, which, near boundary of antiparallel domains, is asymmetric and increases to 4% K-1 in the poled half of the congruent LiTaO3 bicell. The Pi variation in the stoichiometric LiTaO3 bicell was also asymmetric and varied only 1% K-1. The contribution of the primary, secondary, and tertiary pyroelectric effects are discussed along with a summary of the stress and strain in the heated detector disk.
| Item Type: | Article |
|---|---|
| Additional information: | 21 TAYLOR & FRANCIS LTD 759WF |
| Uncontrolled keywords: | Congruent, stoichiometric; lithium tantalate; lithium niobate; temperature; strain, pyroelectricity; tertiary pyroelectricity OPTICAL-DETECTOR; LINBO3; FIELD |
| Subjects: | Q Science |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Physical Sciences |
| Depositing User: | Maggie Francis |
| Date Deposited: | 10 Sep 2008 12:01 |
| Last Modified: | 14 Jan 2010 14:44 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/11390 (The current URI for this page, for reference purposes) |
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