Article
Materials Science, Ceramics
Khiat Abdelmadjid, Vlad Alexandru Lukacs, Felicia Gheorghiu
Summary: In this study, Bi(0.9)Pb(0.1)Fe(1-x)TixO(3) (0.05 < x < 0.20) multiferroic ceramics were prepared and the effects of Pb and Ti substitutions on the dielectric and magnetic properties of BiFeO3 multiferroic ceramics were investigated. The results showed a slight enhancement of saturation magnetization with increasing Ti concentration.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Md Abu Mosa, M. K. Das, F. Alam, M. N. Khan, S. C. Mazumdar
Summary: The role of co-doping with Ba and Sm in BiFeO3 has been studied, and it is found that co-doped samples have improved dielectric and electric polarization properties. Sm doping notably increases the real part of initial permeability and relative quality factor, as well as the coercivity of Bi0.85Ba0.15FeO3 ceramics. This study is of great importance for the fabrication of magnetoelectric devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
M. Arshad, M. Abushad, M. Azhar, Hilal Ahmed, M. Nadeem, Azizurrahaman Ansari, Vishal Kumar Chakradhary, Shahid Husain, Wasi Khan
Summary: By doping a small amount of Pb into BaTiO3 through a solid-state reaction, the multiferroic properties of the compound have been improved, showing potential applications in the field of microwave tunable devices and multi-layered ceramics capacitors.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Rahul Goel, Rajat Syal, Nandini Sharma, Shobhna Dhiman, Arun Kumar Singh, Ashish Garg, Sanjeev Kumar
Summary: This study investigates the room temperature multiferroic properties of Ni-doped NBT ceramics synthesized using solid state reaction technique. The results show an enhancement in various properties with increasing Ni doping, suggesting potential applications in non-volatile lead-free multiferroic memory devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Xiaoyan Zhang, Xu Yang, Zhaopeng Wang, Qi Pan, Baojin Chu, Ruzhong Zuo
Summary: In this work, the composition and sintering temperature of BiFeO3-based ceramics were optimized to improve the piezoelectric response, mechanical quality factor, ferromagnetic property, and magnetoelectric response. A significant increase in the magnetoelectric coefficient alpha(E) was achieved with Mn doping content of 0.75 mol% and sintering temperature of 1030 degrees C.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Aditi Sahoo, Dipten Bhattacharya, Moumita Das, Prabhat Mandal
Summary: Ferroelectric and magnetic properties are investigated for Bi2Fe4O9 nanoparticles with different shapes. The magnetic study reveals that coercivity, Neel temperature and remanent magnetization strongly depend on shape of the particle. The nanoparticle with sphere-like shape exhibits magnetization curve of antiferromagnetic (AFM) ordering with ferromagnetic (FM) component. These shape dependent magnetic and ferroelectric properties are coming because of shape anisotropy.
Article
Chemistry, Physical
A. Klinbumrung, P. Kidkhunthod, P. Jantaratana, R. Yimnirun, A. Prasatkhetragarn
Summary: Chromium ferrite-doped barium zirconate titanate multiferroic materials were prepared by solid-state reaction technique with different proportions of chromium ferrite in the barium zirconate titanate system. The phase formation, lattice parameter, and electronic state were characterized, showing a change in crystal structure with chromium ferrite doping. Magnetic and magnetoelectric properties were also measured, indicating improved magnetic field response in the doped materials, with the highest magnetoelectric coefficient observed at 2 mol% doping.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Physical
Hui Shen, Li Shen, Zhonghai Lin, Meihua Li, Yanli Liu
Summary: The magnetoelectric properties of Bi2Fe4O9 were enhanced by compounding with BaTiO3, showing improved magnetization and dielectric relaxation behavior. Both Bi2Fe4O9 and Bi2Fe4O9/BaTiO3 composite exhibited magnetodielectric effects indicating magnetoelectric coupling. The enhanced results in the composite were mainly attributed to the dielectric relaxation process and spin-orbit coupling.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Hanjun Wei, Jimei Xue, Yujie Ma, Zexin Hou, Yongpeng Dong, Laifei Cheng
Summary: Doping transition metal elements in a crystal can improve the electromagnetic properties of materials. Fe doping in Sc2Si2O7 ceramics leads to defects and enhancement of magnetic properties, improving microwave absorption efficiency. Controlling Fe content can further optimize the absorption performance of the ceramics.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Xiao Li Zhu, Hao Ming Dai, Tu Lai Sun, Xiao Qiang Liu, Xiang Ming Chen
Summary: Enhanced antiferromagnetic characteristics and room temperature magnetoelectric coupling are achieved by Fe-substitution for Mn in h-ScMnO3. The magnetoelectric coefficient alpha (ME) of about 0.78mV/cmOe is stable with the applied magnetic field, reflecting coupling of the short-range spin ordering with the ferroelectric ordering.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Coatings & Films
T. K. Lin, H. W. Chang, C. R. Wang, D. H. Wei, C. S. Tu, P. Y. Chen
Summary: This study investigated the phase constitutions, ferroelectric, magnetic, and nanomechanical characteristics of BiFeO3 films with Dy substitution. The results showed that the BDFO films exhibited desired ferroelectric and ferromagnetic properties, and the hardness of the films was controlled mainly by the impeded propagation of dislocation by grain boundary. The findings suggest that the radius and magnetic moment of the Dy3+ ions play a critical role in the structural evolution and enhanced properties of the BDFO films.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Tian-Yu Yang, Lulu Huang, Jun Guo, Yixin Zhang, Jing Feng, Zhen-Hua Ge
Summary: In this study, Ba doping was successfully used to optimize the electrical conductivity and power factor of BiCuSeOδ ceramics, resulting in reduced lattice thermal conductivity and increased ZT value. The potential for enhancing thermoelectric performance was demonstrated through the controlled doping process.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Chemical
Souvick Das, Ayan Mitra, Sukhendu Sadhukhan, Amitabh Das, Souvik Chatterjee, Pabitra K. Chakrabarti
Summary: Monophasic nanocrystalline lead-free relaxor ferroelectric samples of YFeO3 and Co(0.05)Y(0.95)Fe(0.95)Ti(0.05)O(3) were prepared, and the influence of Co and Ti co-doping on their structural, dielectric, ferroelectric, and magnetic properties was investigated. The results showed enhanced multiferroic properties in the co-doped samples.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
S. Y. Chen, R. Liu, Y. P. Zheng, Y. J. Shi, S. T. Dang, Y. C. Shi, F. Yang, J. H. Li, L. F. He, S. J. Wu, X. F. Li, Y. C. Hu, J. Shang, S. Q. Yin, X. W. Wang
Summary: The structure and electrical properties of Ba0.85Ca0.15Zr0.1Ti0.9O3-xBiFeO3 ceramics were investigated. The samples showed perovskite structure with no detected second phase. The grain size of BiFeO3-doped ceramic samples was significantly reduced. The doped samples exhibited relaxation characteristics, with obvious dispersion phase transition and frequency dispersion. The study found that the sample with 8% doping had the best energy storage characteristics, with an energy storage density of 0.57 J/cm3 and an energy storage efficiency of 91.3%. This research provides a method to improve the energy storage density and efficiency of BCZT ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Xiaofang Wang, Jianshe Yue, Jing Liu
Summary: The use of an appropriate amount of Bi3+/Mn4+ in the (Ba0.85Ca0.15-2xBi2x)(Zr0.1Ti0.9-xMnx)O-3 ceramic system results in a flat temperature stability capacitance curve, with x = 0.020 exhibiting excellent temperature stability, high dielectric constant, and low dielectric loss. This study provides a novel idea for designing new capacitor materials.
CERAMICS INTERNATIONAL
(2021)
