Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 3 March 2006:
Vol. 311. no. 5765, pp. 1270 - 1271
DOI: 10.1126/science.1123811

Reports

Giant Electrocaloric Effect in Thin-Film PbZr0.95Ti0.05O3

A. S. Mischenko,1* Q. Zhang,2 J. F. Scott,3 R. W. Whatmore,2 N. D. Mathur1

An applied electric field can reversibly change the temperature of an electrocaloric material under adiabatic conditions, and the effect is strongest near phase transitions. We demonstrate a giant electrocaloric effect (0.48 kelvin per volt) in 350-nanometer PbZr0.95Ti0.05O3 films near the ferroelectric Curie temperature of 222°C. A large electrocaloric effect may find application in electrical refrigeration.

1 Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK.
2 Department of Advanced Materials, School of Industrial and Manufacturing Science, Cranfield University, Beds, MK43 0AL, UK.
3 Centre for Ferroics, Earth Sciences Department, University of Cambridge, Cambridge CB2 3EQ, UK.

* To whom correspondence should be addressed. E-mail: am507{at}cam.ac.uk

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Large Electrocaloric Effect in Ferroelectric Polymers Near Room Temperature.
B. Neese, B. Chu, S.-G. Lu, Y. Wang, E. Furman, and Q. M. Zhang (2008)
Science 321, 821-823
   Abstract »    Full Text »    PDF »
Applications of Modern Ferroelectrics.
J. F. Scott (2007)
Science 315, 954-959
   Abstract »    Full Text »    PDF »



To Advertise     Find Products


Science. ISSN 0036-8075 (print), 1095-9203 (online)