TY  - JOUR
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Dapčević, Aleksandra
AU  - Pajić, Damir
AU  - Dragović, Jure
AU  - Toric, Filip
AU  - Ćirković, Jovana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1199
AB  - Bismuth ferrite, BiFeO3, was doped with a wide range of concentrations (0-30%) of Gd in order to investigate structural, ferroelectric, and magnetic properties and their correlation. Powder samples of Bi1-xGdxFeO3 (x = 0.00-0.30) were prepared using the hydro-evaporation synthesis method. Sintering process at 870 degrees C for 6 h of as-prepared, Gd doped BiFeO3 powders resulted in ceramic samples with relative densities in the range of (74-86) %. XRD analysis revealed that Bi1-xGdxFeO3 samples (x = 0.00-0.09) crystallized in rhombohedral phase; Bi1-xGdxFeO3 samples (x = 0.10-0.20) contained both rhombohedral and orthorhombic phases, while Bi1-xGdxFeO3 (x = 0.30) sample contained only the orthorhombic phase. The structural parameters obtained after Rietveld refinement for single-phase Bi1-xGdxFeO3 ceramic samples and microstructure image analysis were correlated with the results of ferroelectric and magnetic measurements. Bi1-xGdxFeO3 (x = 0.0625, 0.075, 0.09) samples showed improved ferroelectric properties and reduced leakage current density in comparison with undoped BiFeO3. Gradual increase in Gd content in BiFeO3 led to enhanced magnetic responses and weak ferromagnetic behavior.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium
EP  - 19165
IS  - 15
SP  - 19158
VL  - 45
DO  - 10.1016/j.ceramint.2019.06.162
ER  - 

@article{
author = "Luković Golić, Danijela and Radojković, Aleksandar and Dapčević, Aleksandra and Pajić, Damir and Dragović, Jure and Toric, Filip and Ćirković, Jovana and Branković, Goran and Branković, Zorica",
year = "2019",
abstract = "Bismuth ferrite, BiFeO3, was doped with a wide range of concentrations (0-30%) of Gd in order to investigate structural, ferroelectric, and magnetic properties and their correlation. Powder samples of Bi1-xGdxFeO3 (x = 0.00-0.30) were prepared using the hydro-evaporation synthesis method. Sintering process at 870 degrees C for 6 h of as-prepared, Gd doped BiFeO3 powders resulted in ceramic samples with relative densities in the range of (74-86) %. XRD analysis revealed that Bi1-xGdxFeO3 samples (x = 0.00-0.09) crystallized in rhombohedral phase; Bi1-xGdxFeO3 samples (x = 0.10-0.20) contained both rhombohedral and orthorhombic phases, while Bi1-xGdxFeO3 (x = 0.30) sample contained only the orthorhombic phase. The structural parameters obtained after Rietveld refinement for single-phase Bi1-xGdxFeO3 ceramic samples and microstructure image analysis were correlated with the results of ferroelectric and magnetic measurements. Bi1-xGdxFeO3 (x = 0.0625, 0.075, 0.09) samples showed improved ferroelectric properties and reduced leakage current density in comparison with undoped BiFeO3. Gradual increase in Gd content in BiFeO3 led to enhanced magnetic responses and weak ferromagnetic behavior.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium",
pages = "19165-19158",
number = "15",
volume = "45",
doi = "10.1016/j.ceramint.2019.06.162"
}

Luković Golić, D., Radojković, A., Dapčević, A., Pajić, D., Dragović, J., Toric, F., Ćirković, J., Branković, G.,& Branković, Z.. (2019). Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(15), 19158-19165.
https://doi.org/10.1016/j.ceramint.2019.06.162

Luković Golić D, Radojković A, Dapčević A, Pajić D, Dragović J, Toric F, Ćirković J, Branković G, Branković Z. Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium. in Ceramics International. 2019;45(15):19158-19165.
doi:10.1016/j.ceramint.2019.06.162 .

Luković Golić, Danijela, Radojković, Aleksandar, Dapčević, Aleksandra, Pajić, Damir, Dragović, Jure, Toric, Filip, Ćirković, Jovana, Branković, Goran, Branković, Zorica, "Change in structural, ferroelectric, and magnetic properties of bismuth ferrite induced by doping with gadolinium" in Ceramics International, 45, no. 15 (2019):19158-19165,
https://doi.org/10.1016/j.ceramint.2019.06.162 . .

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 .

Radojković, Aleksandar, Luković Golić, Danijela, Ćirković, Jovana, Marinković Stanojević, Zorica, Pajić, Damir, Toric, Filip, Dapčević, Aleksandra, Vulić, Predrag, Branković, Zorica, Branković, Goran, "Tuning of BiFeO3 multiferroic properties by light doping with Nb" in Ceramics International, 44, no. 14 (2018):16739-16744,
https://doi.org/10.1016/j.ceramint.2018.06.103 . .

TY  - JOUR
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Ćirković, Jovana
AU  - Dapčević, Aleksandra
AU  - Pajić, Damir
AU  - Tasić, Nikola
AU  - Savić, Slavica M.
AU  - Počuča-Nešić, Milica
AU  - Marković, Smilja
AU  - Branković, Goran
AU  - Marinković Stanojević, Zorica
AU  - Branković, Zorica
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1017
AB  - BiFeO3 powders were synthesized by sonochemically assisted hydrothermal and hydro-evaporation methods. The X-ray diffraction confirmed the presence of secondary phases, Bi25FeO39 and Bi2Fe4O9, in as prepared BiFeO3 powders. Optimization of sintering conditions indicated that temperature of 800 degrees C and time of 2 h after pressing at 9 t/cm(2) provided ceramics samples with"the highest density (up to 96% of theoretical density) and the lowest content of secondary phases. Ferroelectric and magnetic characterization was performed on two selected ceramics samples with the highest densities. Ceramics obtained from the powder synthesized by the hydrothermal method showed greater lattice distortion along [1 1 1] axis and smaller grains, which resulted in larger values of electric polarization at room temperature. It also exhibited less Fe(3d)-O(2p) orbital overlapping due to a larger Fe-O-Fe bond angle, causing lower antiferromagnetic ordering and weak ferromagnetic behavior at low temperatures.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods
EP  - 1631
IS  - 7
SP  - 1623
VL  - 36
DO  - 10.1016/j.jeurceramsoc.2016.01.031
ER  - 

@article{
author = "Luković Golić, Danijela and Radojković, Aleksandar and Ćirković, Jovana and Dapčević, Aleksandra and Pajić, Damir and Tasić, Nikola and Savić, Slavica M. and Počuča-Nešić, Milica and Marković, Smilja and Branković, Goran and Marinković Stanojević, Zorica and Branković, Zorica",
year = "2016",
abstract = "BiFeO3 powders were synthesized by sonochemically assisted hydrothermal and hydro-evaporation methods. The X-ray diffraction confirmed the presence of secondary phases, Bi25FeO39 and Bi2Fe4O9, in as prepared BiFeO3 powders. Optimization of sintering conditions indicated that temperature of 800 degrees C and time of 2 h after pressing at 9 t/cm(2) provided ceramics samples with"the highest density (up to 96% of theoretical density) and the lowest content of secondary phases. Ferroelectric and magnetic characterization was performed on two selected ceramics samples with the highest densities. Ceramics obtained from the powder synthesized by the hydrothermal method showed greater lattice distortion along [1 1 1] axis and smaller grains, which resulted in larger values of electric polarization at room temperature. It also exhibited less Fe(3d)-O(2p) orbital overlapping due to a larger Fe-O-Fe bond angle, causing lower antiferromagnetic ordering and weak ferromagnetic behavior at low temperatures.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods",
pages = "1631-1623",
number = "7",
volume = "36",
doi = "10.1016/j.jeurceramsoc.2016.01.031"
}

Luković Golić, D., Radojković, A., Ćirković, J., Dapčević, A., Pajić, D., Tasić, N., Savić, S. M., Počuča-Nešić, M., Marković, S., Branković, G., Marinković Stanojević, Z.,& Branković, Z.. (2016). Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 36(7), 1623-1631.
https://doi.org/10.1016/j.jeurceramsoc.2016.01.031

Luković Golić D, Radojković A, Ćirković J, Dapčević A, Pajić D, Tasić N, Savić SM, Počuča-Nešić M, Marković S, Branković G, Marinković Stanojević Z, Branković Z. Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods. in Journal of the European Ceramic Society. 2016;36(7):1623-1631.
doi:10.1016/j.jeurceramsoc.2016.01.031 .

Luković Golić, Danijela, Radojković, Aleksandar, Ćirković, Jovana, Dapčević, Aleksandra, Pajić, Damir, Tasić, Nikola, Savić, Slavica M., Počuča-Nešić, Milica, Marković, Smilja, Branković, Goran, Marinković Stanojević, Zorica, Branković, Zorica, "Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods" in Journal of the European Ceramic Society, 36, no. 7 (2016):1623-1631,
https://doi.org/10.1016/j.jeurceramsoc.2016.01.031 . .

TY  - JOUR
AU  - Branković, Zorica
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Ćirković, Jovana
AU  - Pajić, Damir
AU  - Marinković Stanojević, Zorica
AU  - Xing, Junwei
AU  - Radović, Miladin
AU  - Li, Guorong
AU  - Branković, Goran
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/964
AB  - Bismuth ferrite, BiFeO3 (BFO), powder was synthesized by hydrothermal method from Bi(NO3)(3)center dot 5H(2)O and Fe(NO3)(3)center dot 9H(2)O as precursors. The synthesized powder was further sintered using spark plasma sintering (SPS). The sintering conditions were optimized in order to achieve high density, minimal amount of secondary phases and improved ferroelectric andmagnetic properties. The optimal structure and properties were achieved after spark plasma sintering at 630 degrees C for 20min, under uniaxial pressure of 90MPa. The composition, microstructure, ferroelectric and magnetic properties of the SPS samples were characterized and compared to those of conventionally sintered ceramics obtained from the same powder. Although the samples sintered using conventional method showed slightly lower amount of secondary phases, the spark plasma sintered samples exhibited favourable microstructure and better ferroelectric properties.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - Spark plasma sintering of hydrothermally synthesized bismuth ferrite
EP  - 264
IS  - 4
SP  - 257
VL  - 10
DO  - 10.2298/PAC1604257B
ER  - 

@article{
author = "Branković, Zorica and Luković Golić, Danijela and Radojković, Aleksandar and Ćirković, Jovana and Pajić, Damir and Marinković Stanojević, Zorica and Xing, Junwei and Radović, Miladin and Li, Guorong and Branković, Goran",
year = "2016",
abstract = "Bismuth ferrite, BiFeO3 (BFO), powder was synthesized by hydrothermal method from Bi(NO3)(3)center dot 5H(2)O and Fe(NO3)(3)center dot 9H(2)O as precursors. The synthesized powder was further sintered using spark plasma sintering (SPS). The sintering conditions were optimized in order to achieve high density, minimal amount of secondary phases and improved ferroelectric andmagnetic properties. The optimal structure and properties were achieved after spark plasma sintering at 630 degrees C for 20min, under uniaxial pressure of 90MPa. The composition, microstructure, ferroelectric and magnetic properties of the SPS samples were characterized and compared to those of conventionally sintered ceramics obtained from the same powder. Although the samples sintered using conventional method showed slightly lower amount of secondary phases, the spark plasma sintered samples exhibited favourable microstructure and better ferroelectric properties.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Spark plasma sintering of hydrothermally synthesized bismuth ferrite",
pages = "264-257",
number = "4",
volume = "10",
doi = "10.2298/PAC1604257B"
}

Branković, Z., Luković Golić, D., Radojković, A., Ćirković, J., Pajić, D., Marinković Stanojević, Z., Xing, J., Radović, M., Li, G.,& Branković, G.. (2016). Spark plasma sintering of hydrothermally synthesized bismuth ferrite. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 10(4), 257-264.
https://doi.org/10.2298/PAC1604257B

Branković Z, Luković Golić D, Radojković A, Ćirković J, Pajić D, Marinković Stanojević Z, Xing J, Radović M, Li G, Branković G. Spark plasma sintering of hydrothermally synthesized bismuth ferrite. in Processing and Application of Ceramics. 2016;10(4):257-264.
doi:10.2298/PAC1604257B .

Branković, Zorica, Luković Golić, Danijela, Radojković, Aleksandar, Ćirković, Jovana, Pajić, Damir, Marinković Stanojević, Zorica, Xing, Junwei, Radović, Miladin, Li, Guorong, Branković, Goran, "Spark plasma sintering of hydrothermally synthesized bismuth ferrite" in Processing and Application of Ceramics, 10, no. 4 (2016):257-264,
https://doi.org/10.2298/PAC1604257B . .