Abstract
The absence of dielectric divergence in improper ferroelectrics makes it possible to obtain a high pyroelectric figure of merit near their transition temperature. Results of measurements carried out as a function of temperature on representatives of three classes of improper ferroelectrics: rare-earth molybdates, propionates, and boracites, show that in each of these the figure of merit rises to a peak value which is superior to that of triglycine sulfate. Analysis of the experimental results using a Landau type free-energy model yields an estimate of the optimum figure of merit obtainable.
| Original language | English |
|---|---|
| Pages (from-to) | 117-121 |
| Number of pages | 5 |
| Journal | Ferroelectrics |
| Volume | 27 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 1980 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by the Defense Advanced Research Projects Agency. Contract DAAG53-76-C-0053 monitored by U.S. Army Night Vision and Electro-Optics Laboratories, Fort Belvoir, Virginia.
Funding
This work was supported by the Defense Advanced Research Projects Agency. Contract DAAG53-76-C-0053 monitored by U.S. Army Night Vision and Electro-Optics Laboratories, Fort Belvoir, Virginia.
| Funders |
|---|
| Defense Advanced Research Projects Agency |
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