TY - JOUR
T1 - Evidence of magnetodielectric coupling in bismuth doped lanthanum ferrite obtained by high-energy ball milling
AU - Olivares-Lugo, L. I.
AU - Sánchez-De Jesús, F.
AU - Rosales-González, O.
AU - Cortés-Escobedo, C. A.
AU - Barba-Pingarrón, A.
AU - Bolarín-Miró, A. M.
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/10/15
Y1 - 2022/10/15
N2 - In this study, the effects of Bi3+ doping of LaFeO3 on the crystal structure and the multiferroic properties of La1−xBixFeO3 (0.0 ≤ x ≤ 0.5, Δx = 0.1) are analyzed. Moreover, the magnetodielectric coupling in these materials is discussed. At low doping levels (x ≤ 0.3 mol), the orthorhombic LaFeO3 stabilizes, and at high bismuth contents (x ≥ 0.4), the orthorhombic BiFeO3 is formed, which was confirmed by determining the Néel temperature (623 K–823 K). The magnetic behavior of the samples shows antiferromagnetic order for all compositions. All the samples showed high relative permittivity values, which increased by doping with Bi3+. Furthermore, the presence of Bi decreased the dielectric dissipation factor, which is attributed to low-crystal-structure distortion. Finally, magnetodielectric coupling in these multiferroic materials is reported for the first time, as observed through changes in the relative permittivity under different applied fields and frequencies.
AB - In this study, the effects of Bi3+ doping of LaFeO3 on the crystal structure and the multiferroic properties of La1−xBixFeO3 (0.0 ≤ x ≤ 0.5, Δx = 0.1) are analyzed. Moreover, the magnetodielectric coupling in these materials is discussed. At low doping levels (x ≤ 0.3 mol), the orthorhombic LaFeO3 stabilizes, and at high bismuth contents (x ≥ 0.4), the orthorhombic BiFeO3 is formed, which was confirmed by determining the Néel temperature (623 K–823 K). The magnetic behavior of the samples shows antiferromagnetic order for all compositions. All the samples showed high relative permittivity values, which increased by doping with Bi3+. Furthermore, the presence of Bi decreased the dielectric dissipation factor, which is attributed to low-crystal-structure distortion. Finally, magnetodielectric coupling in these multiferroic materials is reported for the first time, as observed through changes in the relative permittivity under different applied fields and frequencies.
KW - Bi doped LaFeO
KW - Dielectric properties
KW - LaFeO
KW - Magnetodielectric coupling
KW - Multiferroic material
KW - Perovskite
UR - http://www.scopus.com/inward/record.url?scp=85134786620&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2022.414190
DO - 10.1016/j.physb.2022.414190
M3 - Artículo
AN - SCOPUS:85134786620
SN - 0921-4526
VL - 643
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
M1 - 414190
ER -