Details of Grant 

EPSRC Reference:	GR/M16207/01
Title:	STRUCTURES AND BONDING IN NEW A-SITE SUBSTITUTED PEROVSKITE CRYSTALS
Principal Investigator:	Glazer, Professor AM
Other Investigators:	Thomas, Professor PA
Researcher Co-Investigators:
Project Partners:	Universitat Hamburg
Department:	Oxford Physics
Organisation:	University of Oxford
Scheme:	Standard Research (Pre-FEC)
Starts:	01 October 1998	Ends:	30 September 2001	Value (£):	192,220
EPSRC Research Topic Classifications:	Chemical Structure
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
Substitution at the A-sites of the perovskite structure to form specific compounds is extremely rare, and so the effect of this is poorly understood. Therefore, there is a whole new area of perovskites structures to be explored. This project is to study the crystal structures, A-site bonding, phase transitions and properties of a number of crystalline materials based on the perovskite Na0.5Bio.5Ti03. This substance shows atleast three distinct phases, and yet their structures are still a matter of controversy. The project will be a complete X-ray, modelling, optical and electrical study of these phases, and also of related compounds which have so far been hardly studied. The unusual nature of this class of crystals will throw new light on the structures and properties of perovskites in general, as well as on their phase transitions.
Key Findings
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Further Information:
Organisation Website:	http://www.ox.ac.uk