Multiferroic Pb(Fe[sub 0.66]W[sub 0.33])[sub 0.80]Ti[sub 0.20]O[sub 3] thin films: A room-temperature relaxor ferroelectric and weak ferromagnetic

Kumar, Ashok and Rivera, I. and Katiyar, R. S. and Scott, J. F. (2008) Multiferroic Pb(Fe[sub 0.66]W[sub 0.33])[sub 0.80]Ti[sub 0.20]O[sub 3] thin films: A room-temperature relaxor ferroelectric and weak ferromagnetic. Applied Physics Letters, 92 (13). pp. 132913-3.

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Abstract

We report the synthesis of single-phase Pb(Fe0.66W0.33)0.80Ti0.20O3 thin films by chemical solution deposition techniques on Pt/Ti/SiO2/Si(100) substrates. At room temperature it showed relaxor behavior up to 50 kHz frequency and almost linear dielectric constant for higher frequency. The dielectric diffusivity (gamma=1.89) calculated from modified Curie-Weiss laws and nonlinear Vogel-Fulcher fitting implies relaxor characteristics of the films. Capacitance variation as function of applied field showed perfect “butterfly loops” for frequency (>10 kHZ) at room temperature and for a full range of experimental frequencies near the freezing temperature (~240 K). Magnetization versus applied magnetic field displayed weak ferromagnetic properties.

Item Type: Article
Uncontrolled Keywords: 08AREP; IA57;
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Applied Physics Letters
Volume: 92
Page Range: pp. 132913-3
Depositing User: Sarah Humbert
Date Deposited: 01 Jun 2009 13:30
Last Modified: 23 Jul 2013 09:55
URI: http://eprints.esc.cam.ac.uk/id/eprint/1050

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