TY  - JOUR
AU  - Čebela, Maria
AU  - Zagorac, Dejan
AU  - Popov, Igor
AU  - Torić, Filip
AU  - Klaser, Teodoro
AU  - Skoko, Željko
AU  - Pajić, Damir
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3031
AB  - Bismuth ferrite (BFO, BiFeO3), exhibiting both ferromagnetic and ferroelectric properties at room
temperature, is one of the most researched multiferroic materials with a growing number of technological applications. In the present study, using a combined theoretical–experimental approach, we have investigated the influence of Ho-doping on the structural, electronic and magnetic properties of BFO. Synthesis and structural XRD characterization of Bi1 xHoxFeO3 (x = 0.02, 0.05, and 0.10) nanopowders have been completed. After structure prediction of Ho-doped BiFeO3 using bond valence calculations (BVC), six most favorable candidates were found: a-, b-, g-, R-, T1, and T2. Furthermore, all structure candidates have been examined for different magnetic ordering using DFT calculations. The magnetic behavior of the synthesized materials was investigated using a SQUID magnetometer equipped with an oven. The plethora of magnetic and electronic properties of the Ho-doped BFO that our theoretical research predicted can open up rich possibilities for further investigation and eventual applications.
PB  - Royal Society of Chemistry
T2  - Physical Chemistry Chemical Physics
T1  - Enhancement of weak ferromagnetism, exotic structure prediction and diverse electronic properties in holmium substituted multiferroic bismuth ferrite
EP  - 22358
SP  - 22345
VL  - 25
DO  - 10.1039/D3CP03259K
ER  - 

@article{
author = "Čebela, Maria and Zagorac, Dejan and Popov, Igor and Torić, Filip and Klaser, Teodoro and Skoko, Željko and Pajić, Damir",
year = "2023",
abstract = "Bismuth ferrite (BFO, BiFeO3), exhibiting both ferromagnetic and ferroelectric properties at room
temperature, is one of the most researched multiferroic materials with a growing number of technological applications. In the present study, using a combined theoretical–experimental approach, we have investigated the influence of Ho-doping on the structural, electronic and magnetic properties of BFO. Synthesis and structural XRD characterization of Bi1 xHoxFeO3 (x = 0.02, 0.05, and 0.10) nanopowders have been completed. After structure prediction of Ho-doped BiFeO3 using bond valence calculations (BVC), six most favorable candidates were found: a-, b-, g-, R-, T1, and T2. Furthermore, all structure candidates have been examined for different magnetic ordering using DFT calculations. The magnetic behavior of the synthesized materials was investigated using a SQUID magnetometer equipped with an oven. The plethora of magnetic and electronic properties of the Ho-doped BFO that our theoretical research predicted can open up rich possibilities for further investigation and eventual applications.",
publisher = "Royal Society of Chemistry",
journal = "Physical Chemistry Chemical Physics",
title = "Enhancement of weak ferromagnetism, exotic structure prediction and diverse electronic properties in holmium substituted multiferroic bismuth ferrite",
pages = "22358-22345",
volume = "25",
doi = "10.1039/D3CP03259K"
}

Čebela, M., Zagorac, D., Popov, I., Torić, F., Klaser, T., Skoko, Ž.,& Pajić, D.. (2023). Enhancement of weak ferromagnetism, exotic structure prediction and diverse electronic properties in holmium substituted multiferroic bismuth ferrite. in Physical Chemistry Chemical Physics
Royal Society of Chemistry., 25, 22345-22358.
https://doi.org/10.1039/D3CP03259K

Čebela M, Zagorac D, Popov I, Torić F, Klaser T, Skoko Ž, Pajić D. Enhancement of weak ferromagnetism, exotic structure prediction and diverse electronic properties in holmium substituted multiferroic bismuth ferrite. in Physical Chemistry Chemical Physics. 2023;25:22345-22358.
doi:10.1039/D3CP03259K .

Čebela, Maria, Zagorac, Dejan, Popov, Igor, Torić, Filip, Klaser, Teodoro, Skoko, Željko, Pajić, Damir, "Enhancement of weak ferromagnetism, exotic structure prediction and diverse electronic properties in holmium substituted multiferroic bismuth ferrite" in Physical Chemistry Chemical Physics, 25 (2023):22345-22358,
https://doi.org/10.1039/D3CP03259K . .

TY  - CONF
AU  - Radojković, Aleksandar
AU  - Luković Golić, Danijela
AU  - Ćirković, Jovana
AU  - Pajić, Damir
AU  - Torić, Filip
AU  - Dapčević, Aleksandra
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1754
AB  - BiFeO3, as one of few multiferroic perovskites, is distinguished by some drawbacks such as high leakage current,
low remnant magnetic polarization, high electric coercive field, and difficulties of pure phase synthesis that still
keep it away from any practical use in electronics. There have been many attempts to improve the overall properties
of BiFeO3 by A- or B-site doping or by both. It was found that B-site doping with Nb can potentially improve both
the ferroelectric and magnetic properties of BiFeO3. In this study, BiFe1–xNbxO3 (x=0.002; 0.005 and 0.01) bulk ceramics
were investigated in the quest for a more integral understanding of changes in multiferroic properties caused by
light Nb doping (≤ 1 mole%). BiFe1–xNbxO3 powders were synthesized by hydro evaporation method and only traces
of the secondary phases were observed. Multiferroic properties of bulk ceramics were investigated using X-ray
diffraction (XRD) analysis, scanning electron spectroscopy (SEM), polarization (PMTS), and magnetization (SQUID)
techniques. It was shown that even small percentages of Nb could notably change the electric and magnetic
behavior of BiFeO3. The electric conductivity differed by two orders of magnitude between samples doped with
0.2 and 1% Nb. The ferroelectric behavior strongly depended on the conduction mechanism, and the 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. ZFC-FC magnetization curves were
separated for all Nb concentrations and the degree of separation increased with Nb doping. Weak ferromagnetic
behavior was observed from the hysteresis measurements and the increase of remnant magnetization with Nb
concentration. The coercive magnetic field changed drastically compared to the pure BiFeO3, namely, the sample with
1% Nb exhibited a very high coercive magnetic field of ~10 kOe.
PB  - Innovinc International
C3  - 3rd World Chemistry Conference and Exhibition
T1  - Tuning of BiFeO3  multiferroic properties by light doping with Nb
SP  - 26
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1754
ER  - 

@conference{
author = "Radojković, Aleksandar and Luković Golić, Danijela and Ćirković, Jovana and Pajić, Damir and Torić, Filip and Dapčević, Aleksandra and Branković, Zorica and Branković, Goran",
year = "2019",
abstract = "BiFeO3, as one of few multiferroic perovskites, is distinguished by some drawbacks such as high leakage current,
low remnant magnetic polarization, high electric coercive field, and difficulties of pure phase synthesis that still
keep it away from any practical use in electronics. There have been many attempts to improve the overall properties
of BiFeO3 by A- or B-site doping or by both. It was found that B-site doping with Nb can potentially improve both
the ferroelectric and magnetic properties of BiFeO3. In this study, BiFe1–xNbxO3 (x=0.002; 0.005 and 0.01) bulk ceramics
were investigated in the quest for a more integral understanding of changes in multiferroic properties caused by
light Nb doping (≤ 1 mole%). BiFe1–xNbxO3 powders were synthesized by hydro evaporation method and only traces
of the secondary phases were observed. Multiferroic properties of bulk ceramics were investigated using X-ray
diffraction (XRD) analysis, scanning electron spectroscopy (SEM), polarization (PMTS), and magnetization (SQUID)
techniques. It was shown that even small percentages of Nb could notably change the electric and magnetic
behavior of BiFeO3. The electric conductivity differed by two orders of magnitude between samples doped with
0.2 and 1% Nb. The ferroelectric behavior strongly depended on the conduction mechanism, and the 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. ZFC-FC magnetization curves were
separated for all Nb concentrations and the degree of separation increased with Nb doping. Weak ferromagnetic
behavior was observed from the hysteresis measurements and the increase of remnant magnetization with Nb
concentration. The coercive magnetic field changed drastically compared to the pure BiFeO3, namely, the sample with
1% Nb exhibited a very high coercive magnetic field of ~10 kOe.",
publisher = "Innovinc International",
journal = "3rd World Chemistry Conference and Exhibition",
title = "Tuning of BiFeO3  multiferroic properties by light doping with Nb",
pages = "26",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1754"
}

Radojković, A., Luković Golić, D., Ćirković, J., Pajić, D., Torić, F., Dapčević, A., Branković, Z.,& Branković, G.. (2019). Tuning of BiFeO3  multiferroic properties by light doping with Nb. in 3rd World Chemistry Conference and Exhibition
Innovinc International., 26.
https://hdl.handle.net/21.15107/rcub_rimsi_1754

Radojković A, Luković Golić D, Ćirković J, Pajić D, Torić F, Dapčević A, Branković Z, Branković G. Tuning of BiFeO3  multiferroic properties by light doping with Nb. in 3rd World Chemistry Conference and Exhibition. 2019;:26.
https://hdl.handle.net/21.15107/rcub_rimsi_1754 .

Radojković, Aleksandar, Luković Golić, Danijela, Ćirković, Jovana, Pajić, Damir, Torić, Filip, Dapčević, Aleksandra, Branković, Zorica, Branković, Goran, "Tuning of BiFeO3  multiferroic properties by light doping with Nb" in 3rd World Chemistry Conference and Exhibition (2019):26,
https://hdl.handle.net/21.15107/rcub_rimsi_1754 .

TY  - CONF
AU  - Šenjug, Pavla
AU  - Torić, Filip
AU  - Dragović, Jure
AU  - Pajić, Damir
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Ćirković, Jovana
AU  - Branković, Goran
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2384
AB  - Bismuth ferrite, BiFeO3 is perovskite multiferroic often studied because of its
high ferroelectric and magnetic ordering temperatures, 1100 K and 630 K,
respectively. Despite its room temperature multiferroicity, pure BiFeO3 is of limited
technological importance, especially in bulk ceramic form, due to the
antiferromagnetic state with very low net magnetic moment. Doping of BiFeO3
could disturb the antiferromagnetic order and induce magnetically ordered state with
considerable magnetization coming from the uncompensated or canted spins.
Therefore, magnetic behaviour of BiFeO3 doped with the heavy rare earth elements
such as La, Yb and Gd, was investigated.
Compounds of BiFeO3 in which 10% of Bi atoms are substituted with La, Yb
and Gd were prepared using the hydro-evaporation synthesis. Magnetization of
polycrystalline samples in powder form was investigated in a broad temperature
range of 2–900 K. Splitting between the zero field cooled (ZFC) and field cooled
(FC) magnetization curves indicate development of the weak ferromagnetism below
the Néel temperature of around 610–640 K which is dependent on the composition.
Magnetic hysteresis loops measured at the low temperature (5 K), room temperature,
and high temperatures, just under and above transition temperature, also suggest the
weak ferromagnetic behavior with relatively high coercive field.
Complete magnetic results in full temperature range (2–900 K) clearly indicate
enhancement of the weak ferromagnetism after performed substitution with rare
earth elements La, Yb and Gd in bulk BiFeO3 ceramic.
PB  - Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - 4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017
T1  - Influence of La, Yb and Gd substitution on magnetic behaviour of bulk BiFeO3
SP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2384
ER  - 

@conference{
author = "Šenjug, Pavla and Torić, Filip and Dragović, Jure and Pajić, Damir and Luković Golić, Danijela and Radojković, Aleksandar and Ćirković, Jovana and Branković, Goran",
year = "2017",
abstract = "Bismuth ferrite, BiFeO3 is perovskite multiferroic often studied because of its
high ferroelectric and magnetic ordering temperatures, 1100 K and 630 K,
respectively. Despite its room temperature multiferroicity, pure BiFeO3 is of limited
technological importance, especially in bulk ceramic form, due to the
antiferromagnetic state with very low net magnetic moment. Doping of BiFeO3
could disturb the antiferromagnetic order and induce magnetically ordered state with
considerable magnetization coming from the uncompensated or canted spins.
Therefore, magnetic behaviour of BiFeO3 doped with the heavy rare earth elements
such as La, Yb and Gd, was investigated.
Compounds of BiFeO3 in which 10% of Bi atoms are substituted with La, Yb
and Gd were prepared using the hydro-evaporation synthesis. Magnetization of
polycrystalline samples in powder form was investigated in a broad temperature
range of 2–900 K. Splitting between the zero field cooled (ZFC) and field cooled
(FC) magnetization curves indicate development of the weak ferromagnetism below
the Néel temperature of around 610–640 K which is dependent on the composition.
Magnetic hysteresis loops measured at the low temperature (5 K), room temperature,
and high temperatures, just under and above transition temperature, also suggest the
weak ferromagnetic behavior with relatively high coercive field.
Complete magnetic results in full temperature range (2–900 K) clearly indicate
enhancement of the weak ferromagnetism after performed substitution with rare
earth elements La, Yb and Gd in bulk BiFeO3 ceramic.",
publisher = "Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017",
title = "Influence of La, Yb and Gd substitution on magnetic behaviour of bulk BiFeO3",
pages = "106",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2384"
}

Šenjug, P., Torić, F., Dragović, J., Pajić, D., Luković Golić, D., Radojković, A., Ćirković, J.,& Branković, G.. (2017). Influence of La, Yb and Gd substitution on magnetic behaviour of bulk BiFeO3. in 4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017
Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia., 106.
https://hdl.handle.net/21.15107/rcub_rimsi_2384

Šenjug P, Torić F, Dragović J, Pajić D, Luković Golić D, Radojković A, Ćirković J, Branković G. Influence of La, Yb and Gd substitution on magnetic behaviour of bulk BiFeO3. in 4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017. 2017;:106.
https://hdl.handle.net/21.15107/rcub_rimsi_2384 .

Šenjug, Pavla, Torić, Filip, Dragović, Jure, Pajić, Damir, Luković Golić, Danijela, Radojković, Aleksandar, Ćirković, Jovana, Branković, Goran, "Influence of La, Yb and Gd substitution on magnetic behaviour of bulk BiFeO3" in 4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017 (2017):106,
https://hdl.handle.net/21.15107/rcub_rimsi_2384 .

TY  - CONF
AU  - Radojković, Aleksandar
AU  - Luković Golić, Danijela
AU  - Ćirković, Jovana
AU  - Dapčevć, Aleksandra
AU  - Pajić, Damir
AU  - Torić, Filip
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2330
AB  - Ferroelectric, magnetic and structural properties of BiFe1–xNbxO3 (x = 0.002,
0.005 and 0.01) ceramics were investigated in order to study the influence of B-site
doping of multiferroic BiFeO3. It is known that pure BiFeO3 exhibits G-type of
antiferromagnetism below Néel temperature (TN = 370 °C) and spontaneous
polarization along one of the eight pseudo-cubic [111] axes below Curie temperature
(TC = 826–845 °C). However, poor ferroelectric (high electrical conductivity) and
weak ferromagnetism of pure BiFeO3 can be enhanced by doping. In this study,
Nb5+ was introduced to replace Fe3+ (B-site doping) since it could disturb the nearly
antiparallel spin ordering of the adjacent Fe3+ ions responsible for cycloidal (spiral)
spin structure. On the other hand, the pentivalent Nb cations will reduce the amount
of oxygen vacancies and consequently reduce the electrical conductivity. It was
shown that 1 % Nb drastically changed the magnetic properties compared with pure
BiFeO3: while the remnant magnetization at 300 K reaches only 0.0042 emu/g at
applied magnetic fields up to 50 000 Oe, the coercive magnetic field as high as
~7460 Oe classifies BiFe0.99Nb0.01O3 as hard magnetic material. With lower Nb
content the magnetic properties moved up towards the properties of pure BiFeO3.
Relatively inferior ferroelectric properties showed the sample with 0.2 % Nb, since
its hysteresis loops deformed at electrical fields higher than 40 kV/cm. At the
highest applied electrical field (70 kV/cm) only the sample with 1 % Nb showed a
stable ferroelectric response with hysteresis periods up to 1000 ms, with the highest
remnant electrical polarization of 0.5 μC/cm2
and the coercive electrical field of 22.2
kV/cm. Thus, it was shown that by carefully selected dopant it was possible to
improve both magnetic and ferroelectric properties of BiFeO3.
PB  - Društvo za keramičke materijale Srbije
C3  - 4th Conference of The Serbian Society for Ceramic Materials
T1  - B-site doping as a strategy for tailoring BiFeO3 properties
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2330
ER  - 

@conference{
author = "Radojković, Aleksandar and Luković Golić, Danijela and Ćirković, Jovana and Dapčevć, Aleksandra and Pajić, Damir and Torić, Filip and Branković, Zorica and Branković, Goran",
year = "2017",
abstract = "Ferroelectric, magnetic and structural properties of BiFe1–xNbxO3 (x = 0.002,
0.005 and 0.01) ceramics were investigated in order to study the influence of B-site
doping of multiferroic BiFeO3. It is known that pure BiFeO3 exhibits G-type of
antiferromagnetism below Néel temperature (TN = 370 °C) and spontaneous
polarization along one of the eight pseudo-cubic [111] axes below Curie temperature
(TC = 826–845 °C). However, poor ferroelectric (high electrical conductivity) and
weak ferromagnetism of pure BiFeO3 can be enhanced by doping. In this study,
Nb5+ was introduced to replace Fe3+ (B-site doping) since it could disturb the nearly
antiparallel spin ordering of the adjacent Fe3+ ions responsible for cycloidal (spiral)
spin structure. On the other hand, the pentivalent Nb cations will reduce the amount
of oxygen vacancies and consequently reduce the electrical conductivity. It was
shown that 1 % Nb drastically changed the magnetic properties compared with pure
BiFeO3: while the remnant magnetization at 300 K reaches only 0.0042 emu/g at
applied magnetic fields up to 50 000 Oe, the coercive magnetic field as high as
~7460 Oe classifies BiFe0.99Nb0.01O3 as hard magnetic material. With lower Nb
content the magnetic properties moved up towards the properties of pure BiFeO3.
Relatively inferior ferroelectric properties showed the sample with 0.2 % Nb, since
its hysteresis loops deformed at electrical fields higher than 40 kV/cm. At the
highest applied electrical field (70 kV/cm) only the sample with 1 % Nb showed a
stable ferroelectric response with hysteresis periods up to 1000 ms, with the highest
remnant electrical polarization of 0.5 μC/cm2
and the coercive electrical field of 22.2
kV/cm. Thus, it was shown that by carefully selected dopant it was possible to
improve both magnetic and ferroelectric properties of BiFeO3.",
publisher = "Društvo za keramičke materijale Srbije",
journal = "4th Conference of The Serbian Society for Ceramic Materials",
title = "B-site doping as a strategy for tailoring BiFeO3 properties",
pages = "95",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2330"
}

Radojković, A., Luković Golić, D., Ćirković, J., Dapčevć, A., Pajić, D., Torić, F., Branković, Z.,& Branković, G.. (2017). B-site doping as a strategy for tailoring BiFeO3 properties. in 4th Conference of The Serbian Society for Ceramic Materials
Društvo za keramičke materijale Srbije., 95.
https://hdl.handle.net/21.15107/rcub_rimsi_2330

Radojković A, Luković Golić D, Ćirković J, Dapčevć A, Pajić D, Torić F, Branković Z, Branković G. B-site doping as a strategy for tailoring BiFeO3 properties. in 4th Conference of The Serbian Society for Ceramic Materials. 2017;:95.
https://hdl.handle.net/21.15107/rcub_rimsi_2330 .

Radojković, Aleksandar, Luković Golić, Danijela, Ćirković, Jovana, Dapčevć, Aleksandra, Pajić, Damir, Torić, Filip, Branković, Zorica, Branković, Goran, "B-site doping as a strategy for tailoring BiFeO3 properties" in 4th Conference of The Serbian Society for Ceramic Materials (2017):95,
https://hdl.handle.net/21.15107/rcub_rimsi_2330 .

TY  - CONF
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Ćirković, Jovana
AU  - Tasić, Nikola
AU  - Pajić, Damir
AU  - Branković, Goran
AU  - Marinković Stanojević, Zorica
AU  - Branković, Zorica
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2451
AB  - Multiferroic bismuth ferrite (BiFeO3) powders were synthesized using hydroevaporation (HE) and sonochemically assisted hydrothermal (HT) method to
investigate how different synthesis methods affect the properties of the powders and
sintered samples. The structural and microstructural analyses revealed that all the
samples contain secondary phases, Bi25FeO40 and Bi2Fe4O9, but their contribution
depends on conditions of thermal treatment (calcination and sintering). The densest
(88% and 95 % of theoretical density for HE and HT sample, respectively) ceramics
were obtained after pressing of powders at 9 t/cm2
followed by sintering at 820 °C
for 2 h. Ferroelectric properties of sintered samples were correlated with grain size
and density, while the presence of charge defects indicated distortion of crystal
lattice. Magnetic measurements of M(H) for both sintered samples showed small
deviation from linearity. The sample sintered from HT powder exhibited greater
remnant electric polarization as well as greater value of magnetization as a function
of temperature. Also, after cooling in magnetic field this sample indicated the
asymmetric magnetic hysteresis loop (exchange bias effect). Although both samples
showed weak electric (Pr ≤ 1 μC/cm2
) and magnetic polarization (M ≤ 0.01 emu/g)
at room temperature, ceramics obtained from HT powder was overall superior with
respect to multiferroic properties.
PB  - Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - 3th Conference of the Serbian Society for Ceranic Materials, June 15-17, 2015, Belgrade, Serbia, 3CSCS-2015
T1  - Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by hydro-evaporation and sonochemically assisted hydrothermal methods
SP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2451
ER  - 

@conference{
author = "Luković Golić, Danijela and Radojković, Aleksandar and Ćirković, Jovana and Tasić, Nikola and Pajić, Damir and Branković, Goran and Marinković Stanojević, Zorica and Branković, Zorica",
year = "2015",
abstract = "Multiferroic bismuth ferrite (BiFeO3) powders were synthesized using hydroevaporation (HE) and sonochemically assisted hydrothermal (HT) method to
investigate how different synthesis methods affect the properties of the powders and
sintered samples. The structural and microstructural analyses revealed that all the
samples contain secondary phases, Bi25FeO40 and Bi2Fe4O9, but their contribution
depends on conditions of thermal treatment (calcination and sintering). The densest
(88% and 95 % of theoretical density for HE and HT sample, respectively) ceramics
were obtained after pressing of powders at 9 t/cm2
followed by sintering at 820 °C
for 2 h. Ferroelectric properties of sintered samples were correlated with grain size
and density, while the presence of charge defects indicated distortion of crystal
lattice. Magnetic measurements of M(H) for both sintered samples showed small
deviation from linearity. The sample sintered from HT powder exhibited greater
remnant electric polarization as well as greater value of magnetization as a function
of temperature. Also, after cooling in magnetic field this sample indicated the
asymmetric magnetic hysteresis loop (exchange bias effect). Although both samples
showed weak electric (Pr ≤ 1 μC/cm2
) and magnetic polarization (M ≤ 0.01 emu/g)
at room temperature, ceramics obtained from HT powder was overall superior with
respect to multiferroic properties.",
publisher = "Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "3th Conference of the Serbian Society for Ceranic Materials, June 15-17, 2015, Belgrade, Serbia, 3CSCS-2015",
title = "Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by hydro-evaporation and sonochemically assisted hydrothermal methods",
pages = "54",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2451"
}

Luković Golić, D., Radojković, A., Ćirković, J., Tasić, N., Pajić, D., Branković, G., Marinković Stanojević, Z.,& Branković, Z.. (2015). Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by hydro-evaporation and sonochemically assisted hydrothermal methods. in 3th Conference of the Serbian Society for Ceranic Materials, June 15-17, 2015, Belgrade, Serbia, 3CSCS-2015
Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia., 54.
https://hdl.handle.net/21.15107/rcub_rimsi_2451

Luković Golić D, Radojković A, Ćirković J, Tasić N, Pajić D, Branković G, Marinković Stanojević Z, Branković Z. Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by hydro-evaporation and sonochemically assisted hydrothermal methods. in 3th Conference of the Serbian Society for Ceranic Materials, June 15-17, 2015, Belgrade, Serbia, 3CSCS-2015. 2015;:54.
https://hdl.handle.net/21.15107/rcub_rimsi_2451 .

Luković Golić, Danijela, Radojković, Aleksandar, Ćirković, Jovana, Tasić, Nikola, Pajić, Damir, Branković, Goran, Marinković Stanojević, Zorica, Branković, Zorica, "Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by hydro-evaporation and sonochemically assisted hydrothermal methods" in 3th Conference of the Serbian Society for Ceranic Materials, June 15-17, 2015, Belgrade, Serbia, 3CSCS-2015 (2015):54,
https://hdl.handle.net/21.15107/rcub_rimsi_2451 .