Peter Littlewood
Peter Littlewood
Theory of Relaxor Ferroelectric Electrocalorics
Conventional perovskite ferroelectrics are the material of choice in many modern day technologies such as capacitive energy storage devices, infrared sensors, and random access memories. Conventional ferroelectrics, however, have not been exploited in cooling applications mainly because their narrow region of critical fluctuations of polarization results in a small electrocaloric effect (a few miliKelvin per volt ). Relaxor ferroelectrics, on the other hand, exhibit a broad region of critical fluctuations which makes them promising candidates for large electrocalorics. In this talk, we present a theoretical study of the electrocaloric effect in relaxor ferroelectrics. We compute isothermal changes in entropy and adiabatic changes in temperature within a model of polarizable unit cells with local short-range forces, dipolar forces, and compositional disorder.

Welcome
to the European Conference on Materials and Technologies for Sustainable Growth website.
ECo MaTech will be held in Bled (Slovenia) from 19th to 21st of September 2013.
Eco MaTech is the third edition of a conference that started in 2009. The aim of ECo MaTech is to gather representatives of academic and R&D institutions, industry, governmental agencies and civil society to:
- present their work, ideas and products,
- increase fruitful exhanges between all the actors involved in sustainable growth technologies,
- increase the networking with sustainable growth professionals,
- establish a general discussion platform on sustainable growth.
Picture Gallery

Conference rooms at Kompas hotel
The conference will be held in Bled at Kompas Hotel. The hotel boasts a long experience in hosting international conferences.

Visit Bled
With immense natural beauty, Bled, together with its surroundings, ranks among the most beautiful alpine resorts, renowned for its mild, healing climate and thermal lake water. For more information, please visit bled.si.