Structurally tuned multiferroic state in BiFeO3-based compounds

Autor(es)

Gotardo, R. A. M. ^[1] ; Cotica, L. F. ^[1] ; Santos, I. A. ^[1] ; Olzon-Dyonisio, M. ^[2] ; Souza, S. D. ^[2] ; Garcia, D. ^[2] ; Eiras, J. A. ^[2] ; Coelho, A. A. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Maringa, Dept Fis, BR-87020900 Maringa, Parana - Brazil

^[2] Univ Fed Sao Carlos, Dept Fis, BR-13565345 Sao Paulo - Brazil

^[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Dept Fis Aplicada, BR-13083970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING; v. 111, n. 2, p. 563-567, MAY 2013.
• Citações Web of Science: 9

Resumo

Structurally tuned multiferroic state is demonstrated for BiFeO3-based compounds. The electric and magnetic orders are strongly affected by the coexistence of R3c and Cm phases, i.e., by structural softness through monoclinicity, which leads the multiferroism to be driven by the same cation. The Cm phase enhances the ferroelectric and magnetic responses through Bi/Ba-O and Fe/Ti-O bonds by influencing structural distortions and ion valence. We also show the strong correlations between ferroic orders, structural arrangements, and tuning of the ion valence in the perovskite B site. (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