Effect of crystallite size and clustering in influencing the stability of phases of a very large tetragonality ferroelectric system 0.6BiFeO(3)-0.4PbTiO(3)

Siddaramanna, Ashoka and Srivastava, Chandan and Rao, Badari Narayana and Ranjan, Rajeev (2013) Effect of crystallite size and clustering in influencing the stability of phases of a very large tetragonality ferroelectric system 0.6BiFeO(3)-0.4PbTiO(3). In: Solid State Communications, 160 . pp. 56-60.

PDF Sol_Sta_Com_160_56_2013.pdf - Published Version Restricted to Registered users only Download (475kB) | Request a copy

Abstract

The role of crystallite size and clustering in influencing the stability of the structures of a large tetragonality ferroelectric system 0.6BiFeO(3)-0.4PbTiO(3) was investigated. The system exhibits cubic phase for a crystallite size similar to 25 nm, three times larger than the critical size reported for one of its end member PbTiO3. With increased degree of clustering for the same average crystallite size, partial stabilization of the ferroelectric tetragonal phase takes place. The results suggest that clustering helps in reducing the depolarization energy without the need for increasing the crystallite size of free particles.

Item Type:	Journal Article
Publication:	Solid State Communications
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Ferroelectric; Sol-Gel; X-Ray Powder Diffraction and TEM; Size Effect
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Jun 2013 11:46
Last Modified:	18 Jun 2013 11:46
URI:	http://eprints.iisc.ac.in/id/eprint/46731

Actions (login required)

View Item