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Type: Artigo de periódico
Title: Evidence of new magnetic ordering at high temperatures in Pb-based multiferroics perovskites
Author: Fraygola, B
Nascimento, WJ
Coelho, AA
Garcia, D
Eiras, JA
Abstract: Presented here are the results of magnetic data that reveal that both Pb-based perovskites samples, Pb(Fe1/2Nb1/2)O-3 (lead iron niobate - PFN) and Pb(Fe2/3W1/3)O-3 (lead iron tungstate - PFW), exhibit a change in magnetic ordering from paramagnetic (PM) to weak ferromagnetic state at high temperature: a weak ferromagnetic order occurs in the samples around 530K. The experimental results suggest a possible involvement of the Pb ions into the superexchange of antiferromagnetic (AFM) phase.
Subject: ferroelectrics
magnetic proprieties
Country: Alemanha
Editor: Wiley-v C H Verlag Gmbh
Citation: Physica Status Solidi A-applications And Materials Science. Wiley-v C H Verlag Gmbh, v. 210, n. 9, n. 1856, n. 1860, 2013.
Rights: fechado
Identifier DOI: 10.1002/pssa.201329011
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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