ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Onset of spontaneous electrostrictive strain below 520 K in Pr-doped SrTiO3

Ranjan, Rajeev and Garg, Rohini and Hackl, Rudi and Senyshyn, Anatoliy and Schmidbauer, Elmar and Trots, Dmytro and Boysen, Hans (2008) Onset of spontaneous electrostrictive strain below 520 K in Pr-doped SrTiO3. In: PHYSICAL REVIEW B, 78 (9). pp. 2102-1.

[img] PDF
PhysRevB_78_092102.pdf - Published Version
Restricted to Registered users only

Download (620Kb) | Request a copy
Official URL: http://prb.aps.org/abstract/PRB/v78/i9/e092102

Abstract

$Sr_{0.95}Pr_{0.05}TiO_{3}$ ceramic is shown to exhibit anomalous value of cubic lattice parameter at room temperature. A combination of temperature dependent dielectric and synchrotron x-ray powder-diffraction study has revealed that the anomalous lattice parameter has contribution from spontaneous electrostrictive strain that sets in below 520 K. In analogy with the lead-based classical relaxor ferroelectrics, it is suggested that Pr-doped $SrTiO_{3}$ is a new class of high-temperature lead-free relaxor ferroelectric system.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The American Physical Society.
Keywords: 1ST-ORDER RAMAN-SCATTERING; DIELECTRIC-RELAXATION; STRONTIUM-TITANATE; PHASE-TRANSITIONS; THIN-FILMS; FERROELECTRICITY; SR1-XCAXTIO3; KTAO3; DIFFRACTION; EVOLUTION
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 03 Feb 2010 11:22
Last Modified: 19 Sep 2010 04:52
URI: http://eprints.iisc.ernet.in/id/eprint/16484

Actions (login required)

View Item View Item