The effect of gadolinium substitution on the structural, ferroelectric and magnetic properties of bismuth ferrite ceramics
Аутори
Luković Golić, DanijelaRadojković, Aleksandar
Dapčević, Aleksandra
Ćirković, Jovana
Tasić, Nikola
Marinković Stanojević, Zorica
Branković, Zorica
Branković, Goran
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Bi1-xGdxFeO3 (x = 0.01; 0.05; 0.075; 0.09; 0.10; 0.20; 0.30) powders were synthesized by hydro-evaporation method. The optimization of sintering conditions indicated that temperature of 870 °C and time of 6 hours (after pressing at 9 t/cm2) provided the densest ceramics samples (up to 88 % of theoretical density) and the lowest amount of secondary phases ( 5.5 wt%). The increase of gadolinium content resulted in polar-to-nonpolar (R3c Pnma) structural phase transition at about x = 0.10, which was reflected on deterioration of ferroelectric property. Structural analysis indicated decrease of unit cell volume with the increase of x, but the (Bi,Gd)–Fe distance did not exhibit regularity in change. The bismuth ferrite ceramics samples doped with x = 0.075 and x = 0.09 of gadolinium showed the greatest lattice distortion along the [111] axis. These samples also exhibited larger values of remnant electric polarization and less leakage processes than the pure bismuth ferrite ceramics samp...les. Magnetic behavior of Bi1-xGdxFeO3 samples revealed that the weak ferromagnetic moment strengthened with increase of the gadolinium content.
Кључне речи:
Bismuth ferrite ceramics; Multiferroics; Electric polarization; Leakage currents; Weak ferromagnetismИзвор:
4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017, 2017, 92-Издавач:
- Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia
Финансирање / пројекти:
- 0-3D наноструктуре за примену у електроници и обновљивим изворима енергије: синтеза, карактеризација и процесирање (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Luković Golić, Danijela AU - Radojković, Aleksandar AU - Dapčević, Aleksandra AU - Ćirković, Jovana AU - Tasić, Nikola AU - Marinković Stanojević, Zorica AU - Branković, Zorica AU - Branković, Goran PY - 2017 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2375 AB - Bi1-xGdxFeO3 (x = 0.01; 0.05; 0.075; 0.09; 0.10; 0.20; 0.30) powders were synthesized by hydro-evaporation method. The optimization of sintering conditions indicated that temperature of 870 °C and time of 6 hours (after pressing at 9 t/cm2) provided the densest ceramics samples (up to 88 % of theoretical density) and the lowest amount of secondary phases ( 5.5 wt%). The increase of gadolinium content resulted in polar-to-nonpolar (R3c Pnma) structural phase transition at about x = 0.10, which was reflected on deterioration of ferroelectric property. Structural analysis indicated decrease of unit cell volume with the increase of x, but the (Bi,Gd)–Fe distance did not exhibit regularity in change. The bismuth ferrite ceramics samples doped with x = 0.075 and x = 0.09 of gadolinium showed the greatest lattice distortion along the [111] axis. These samples also exhibited larger values of remnant electric polarization and less leakage processes than the pure bismuth ferrite ceramics samples. Magnetic behavior of Bi1-xGdxFeO3 samples revealed that the weak ferromagnetic moment strengthened with increase of the gadolinium content. 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 - The effect of gadolinium substitution on the structural, ferroelectric and magnetic properties of bismuth ferrite ceramics SP - 92 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2375 ER -
@conference{ author = "Luković Golić, Danijela and Radojković, Aleksandar and Dapčević, Aleksandra and Ćirković, Jovana and Tasić, Nikola and Marinković Stanojević, Zorica and Branković, Zorica and Branković, Goran", year = "2017", abstract = "Bi1-xGdxFeO3 (x = 0.01; 0.05; 0.075; 0.09; 0.10; 0.20; 0.30) powders were synthesized by hydro-evaporation method. The optimization of sintering conditions indicated that temperature of 870 °C and time of 6 hours (after pressing at 9 t/cm2) provided the densest ceramics samples (up to 88 % of theoretical density) and the lowest amount of secondary phases ( 5.5 wt%). The increase of gadolinium content resulted in polar-to-nonpolar (R3c Pnma) structural phase transition at about x = 0.10, which was reflected on deterioration of ferroelectric property. Structural analysis indicated decrease of unit cell volume with the increase of x, but the (Bi,Gd)–Fe distance did not exhibit regularity in change. The bismuth ferrite ceramics samples doped with x = 0.075 and x = 0.09 of gadolinium showed the greatest lattice distortion along the [111] axis. These samples also exhibited larger values of remnant electric polarization and less leakage processes than the pure bismuth ferrite ceramics samples. Magnetic behavior of Bi1-xGdxFeO3 samples revealed that the weak ferromagnetic moment strengthened with increase of the gadolinium content.", 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 = "The effect of gadolinium substitution on the structural, ferroelectric and magnetic properties of bismuth ferrite ceramics", pages = "92", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2375" }
Luković Golić, D., Radojković, A., Dapčević, A., Ćirković, J., Tasić, N., Marinković Stanojević, Z., Branković, Z.,& Branković, G.. (2017). The effect of gadolinium substitution on the structural, ferroelectric and magnetic properties of bismuth ferrite ceramics. 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., 92. https://hdl.handle.net/21.15107/rcub_rimsi_2375
Luković Golić D, Radojković A, Dapčević A, Ćirković J, Tasić N, Marinković Stanojević Z, Branković Z, Branković G. The effect of gadolinium substitution on the structural, ferroelectric and magnetic properties of bismuth ferrite ceramics. in 4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017. 2017;:92. https://hdl.handle.net/21.15107/rcub_rimsi_2375 .
Luković Golić, Danijela, Radojković, Aleksandar, Dapčević, Aleksandra, Ćirković, Jovana, Tasić, Nikola, Marinković Stanojević, Zorica, Branković, Zorica, Branković, Goran, "The effect of gadolinium substitution on the structural, ferroelectric and magnetic properties of bismuth ferrite ceramics" in 4th Conference of the Serbian Society for Ceranic Materials, June 14-16, 2017, Belgrade, Serbia, 4CSCS-2017 (2017):92, https://hdl.handle.net/21.15107/rcub_rimsi_2375 .