Orthorhombic-tetragonal phase coexistence and enhanced piezo-response at room temperature in Zr, Sn, and Hf modified BaTiO3

Kalyani, Ajay Kumar and Brajesh, Kumar and Senyshyn, Anatoliy and Ranjan, Rajeev (2014) Orthorhombic-tetragonal phase coexistence and enhanced piezo-response at room temperature in Zr, Sn, and Hf modified BaTiO3. In: APPLIED PHYSICS LETTERS, 104 (25).

PDF app_phy_let_104-252906_2014.pdf - Published Version Restricted to Registered users only Download (985kB) | Request a copy

Abstract

The effect of Zr, Hf, and Sn in BaTiO3 has been investigated at close composition intervals in the dilute concentration limit. Detailed structural analysis by x-ray and neutron powder diffraction revealed that merely 2mol. % of Zr, Sn, and Hf stabilizes a coexistence of orthorhombic (Amm2) and tetragonal (P4mm) phases at room temperature. As a consequence, all the three systems show substantial enhancement in the longitudinal piezoelectric coefficient (d(33)), with Sn modification exhibiting the highest value similar to 425 pC/N. (C) 2014 AIP Publishing LLC.

Item Type:	Journal Article
Publication:	APPLIED PHYSICS LETTERS
Publisher:	AMER INST PHYSICS
Additional Information:	copyright of this article belongs to AMER INST PHYSICS, USA
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	19 Aug 2014 11:30
Last Modified:	19 Aug 2014 11:30
URI:	http://eprints.iisc.ac.in/id/eprint/49637

Actions (login required)

View Item