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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Anelastic Characterization of Pb(Fe2/3W1/3)O-3 Multiferroic Ceramics

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Fraygola, B. [1] ; Garcia, D. [1] ; Eiras, J. A. [1]
Total Authors: 3
[1] Univ Fed Sao Carlos, Depto Fis, Grp Ceram Ferroeletr GCFerr, BR-13560 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Ferroelectrics; v. 428, p. 87-93, 2012.
Web of Science Citations: 3

Multiferroic relaxor ceramics Pb(Fe2/3W1/3)O-3 (PFW) has been synthesized by a modified B-site precursor method and characterized by anelastic measurements. Anomalies in the temperature dependence of the elastic constant have been observed at T-N and T-C, indicating that the establishment of ferroelectric and antiferromagnetic orders occurs via linear coupling with lattice strain. In both transitions, FE and AFM, the coupling with the elastic part of the system is linear-quadratic, ie F (S, M) = gSL(2) (L = M-2-M-1) and F (S, P) = beta SP2, justifying the presence of the term in eta(LP2)-P-2 free energy expansion. (AU)

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