16:30 - 18:30
Poster Session 2
Room: Poster Room
Poster session
Chair/s:
Chi-Shun Tu, Ducinei Garcia
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Effect of the rare earth ion substitution on structural, dielectric and magnetic properties of perovskite Re2Bi2Fe4O12 (Re = Eu, Sm, La) ceramics
Javier Alonso Cuervo Farfán 1, Diego Seiti Fukano Viana 2, Flávio Paulo Milton 2, Ducinei Garcia 2, David Arsenio Landínez Téllez 1, Jairo Roa Rojas 1
1 Physics of Novel Materials Group, Physics department, National University of Colombia, A.A. 5997 Bogota DC, Colombia, Bogota, Colombia
2 Ferroelectric Materials Group, Physics department, Sao Carlos Federal University, Rodovia Washington Luís, Km 235, Sao Carlos- Sao Paulo, Brazil, Sao Carlos, Brazil

The conventional solid-state reaction method was applied for the processing of the perovskite Re2Bi2Fe4O12 (Re = Eu, Sm, La) compounds. Under optimized processing conditions, it make possible to obtain single-phase sintered bulks with relatively high apparent density. Complex impedance and magnetic measurements at low temperature showed dielectric relaxation processes, which occurs above Curie and Neel characteristic temperatures, influenced by the rare earth ion substitution. Furthermore, from the magnetization hysteresis loops, analyzed at 50 K, 200 K and 300 K, it was observed that magnetic state drastically changed upon the rare earth choice.

Reference:
We-S55-P-47
Presenter/s:
Javier Alonso Cuervo Farfán
Presentation type:
Poster
Room:
Poster Room
Chair/s:
Chi-Shun Tu, Ducinei Garcia
Date:
Wednesday, September 6th, 2017
Time:
16:30 - 18:30
Session times:
16:30 - 18:30
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