Intrinsic magnetoelectric coupling in PFW-PT solid solutions

Author(s)

Fraygola, B. ^[1] ; Eiras, J. A. ^[1]

Affiliation

^[1] Univ Fed Sao Carlos, Dept Fis, Grp Ceram Ferroeletr, BR-13565670 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: Solid State Communications; v. 158, p. 54-57, MAR 2013.
• Web of Science Citations: 2

Abstract

Dielectric and magnetic properties were investigated in Pb(Fe2/3W1/3)O-3-PbTiO3 ceramics. The dielectric constant in these materials exhibits changes at the magnetic ordering temperature, which presents a close connection with the magnetoelectric intrinsic effect (ME). An approximation of the ferroelectromagnetoelastic coefficient was determined from the dielectric susceptibility response. The analysis of magnetic and dielectric susceptibilities based on the Landau-Devonshire thermodynamic formalisms indicates that the ME effects is larger (in absolute value) when the FE and AFM transitions are close together. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 08/04025-0 - Nanostructured multifunctional multiferroic materials: synthesis, properties, phenomenology and applications
• Grantee: José Antonio Eiras
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 10/11187-6 - Determination of the magnetoelectric coupling coefficient in single phase multiferroic materials
• Grantee: Barbara Maraston Fraygola
• Support Opportunities: Scholarships in Brazil - Post-Doctoral