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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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.
|Additional information:||21 TAYLOR & FRANCIS LTD 759WF|
|Uncontrolled keywords:||Congruent, stoichiometric; lithium tantalate; lithium niobate; temperature; strain, pyroelectricity; tertiary pyroelectricity OPTICAL-DETECTOR; LINBO3; FIELD|
|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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