Bulk ceramic samples of BiFeO3 were light doped (up to 1%) with Nb5+ in the place of Fe3+ (B-site doping) and their multiferroic properties were investigated using XRD, SEM, polarization (PMTS) and magnetization (SQUID) techniques. It is shown that even the small percentages of doping can notably change electric and magnetic behavior. Electric conductivity differs by two orders of magnitude between samples doped with 0.2% and 1% Nb. The ferroelectric behavior strongly depended on conduction mechanism, and transition from space-charge-limited current (SCLC) conduction to trap-filled limited (TFL) conduction regime reflected on a change in hysteresis patterns, particularly for the samples with 0.2% and 0.5% Nb. Separation of ZFC-FC magnetization curves occurred for all Nb concentrations and increased with Nb doping. Weak ferromagnetic behavior and the increase of remnant magnetization with Nb concentration was observed from the hysteresis measurements. Coercive field changed drastically ...compared to the pure BiFeO3, namely, the sample with 1% Nb exhibited very high coercive magnetic field of 10 kOe.
Keywords:
Magnetic properties C / Ferroelectric properties C / Bismuth ferrite
TY - JOUR
AU - Radojković, Aleksandar
AU - Luković Golić, Danijela
AU - Ćirković, Jovana
AU - Marinković-Stanojević, Zorica
AU - Pajić, Damir
AU - Toric, Filip
AU - Dapčević, Aleksandra
AU - Vulić, Predrag
AU - Branković, Zorica
AU - Branković, Goran
PY - 2018
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1162
AB - Bulk ceramic samples of BiFeO3 were light doped (up to 1%) with Nb5+ in the place of Fe3+ (B-site doping) and their multiferroic properties were investigated using XRD, SEM, polarization (PMTS) and magnetization (SQUID) techniques. It is shown that even the small percentages of doping can notably change electric and magnetic behavior. Electric conductivity differs by two orders of magnitude between samples doped with 0.2% and 1% Nb. The ferroelectric behavior strongly depended on conduction mechanism, and transition from space-charge-limited current (SCLC) conduction to trap-filled limited (TFL) conduction regime reflected on a change in hysteresis patterns, particularly for the samples with 0.2% and 0.5% Nb. Separation of ZFC-FC magnetization curves occurred for all Nb concentrations and increased with Nb doping. Weak ferromagnetic behavior and the increase of remnant magnetization with Nb concentration was observed from the hysteresis measurements. Coercive field changed drastically compared to the pure BiFeO3, namely, the sample with 1% Nb exhibited very high coercive magnetic field of 10 kOe.
PB - Elsevier Sci Ltd, Oxford
T2 - Ceramics International
T1 - Tuning of BiFeO3 multiferroic properties by light doping with Nb
EP - 16744
IS - 14
SP - 16739
VL - 44
DO - 10.1016/j.ceramint.2018.06.103
ER -
@article{
author = "Radojković, Aleksandar and Luković Golić, Danijela and Ćirković, Jovana and Marinković-Stanojević, Zorica and Pajić, Damir and Toric, Filip and Dapčević, Aleksandra and Vulić, Predrag and Branković, Zorica and Branković, Goran",
year = "2018",
abstract = "Bulk ceramic samples of BiFeO3 were light doped (up to 1%) with Nb5+ in the place of Fe3+ (B-site doping) and their multiferroic properties were investigated using XRD, SEM, polarization (PMTS) and magnetization (SQUID) techniques. It is shown that even the small percentages of doping can notably change electric and magnetic behavior. Electric conductivity differs by two orders of magnitude between samples doped with 0.2% and 1% Nb. The ferroelectric behavior strongly depended on conduction mechanism, and transition from space-charge-limited current (SCLC) conduction to trap-filled limited (TFL) conduction regime reflected on a change in hysteresis patterns, particularly for the samples with 0.2% and 0.5% Nb. Separation of ZFC-FC magnetization curves occurred for all Nb concentrations and increased with Nb doping. Weak ferromagnetic behavior and the increase of remnant magnetization with Nb concentration was observed from the hysteresis measurements. Coercive field changed drastically compared to the pure BiFeO3, namely, the sample with 1% Nb exhibited very high coercive magnetic field of 10 kOe.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Tuning of BiFeO3 multiferroic properties by light doping with Nb",
pages = "16744-16739",
number = "14",
volume = "44",
doi = "10.1016/j.ceramint.2018.06.103"
}
Radojković, A., Luković Golić, D., Ćirković, J., Marinković-Stanojević, Z., Pajić, D., Toric, F., Dapčević, A., Vulić, P., Branković, Z.,& Branković, G.. (2018). Tuning of BiFeO3 multiferroic properties by light doping with Nb. in Ceramics International
Elsevier Sci Ltd, Oxford., 44(14), 16739-16744.
https://doi.org/10.1016/j.ceramint.2018.06.103
Radojković A, Luković Golić D, Ćirković J, Marinković-Stanojević Z, Pajić D, Toric F, Dapčević A, Vulić P, Branković Z, Branković G. Tuning of BiFeO3 multiferroic properties by light doping with Nb. in Ceramics International. 2018;44(14):16739-16744.
doi:10.1016/j.ceramint.2018.06.103 .
