Intrinsic magnetoelectric coupling in PFW-PT solid solutions

Autor(es)

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

Afiliação do(s) autor(es)

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

• Tipo de documento: Artigo Científico
• Fonte: Solid State Communications; v. 158, p. 54-57, MAR 2013.
• Citações Web of Science: 2

Resumo

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)

• Processo FAPESP: 08/04025-0 - Materiais multifuncionais multiferróicos nanoestruturados: síntese, propriedades, fenomenologia e aplicações
• Beneficiário: José Antonio Eiras
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 10/11187-6 - Determinação do coeficiente de acoplamento magnetoelétrico em materiais multiferróicos monofásicos
• Beneficiário: Barbara Maraston Fraygola
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado