Article
Chemistry, Multidisciplinary
Linqiang Mei, Ruxin Xie, Shuang Zhu, Shilong Deng, Haiwei Xu, Xiaotang Fan, Wenyan Yin, Zhanjun Gu
Summary: We investigated the translocation, biotransformation, and biodistribution of CsPbBr3 PNPs in C57BL/6J mice and found that they can accumulate in the hippocampus, leading to Ca overload and severe damage to learning, memory, and cognition behavior. CsPbBr3 PNPs also undergo transformations into soluble and insoluble lead compounds in different physiological environments. The toxicity of CsPbBr3 PNPs is higher than that of soluble Pb(Ac)2 due to sustained release of Pb ions. The neurotoxic effects of Pb-PNPs were attributed to intracellular Ca2+ overload, reactive oxygen species production, and disruption of mitochondrial membrane potential.
Article
Materials Science, Ceramics
D. Giraldo, P. Almodovar, M. L. Lopez, E. Rodriguez-Aguado, E. Rodriguez-Castellon, A. Galdamez, I. Alvarez-Serrano
Summary: In this study, BiFeO3-NaNbO3 electroceramics synthesized by the ceramic method were investigated for their defined thermistor response and magnetic behavior. Compositional heterogeneity was found to lead to a cluster-type scenario in the samples, influencing the material's unique properties. Impedance spectroscopy data showed the development of a PTCR thermistor response near room temperature for certain compositions, making the x = 0.9 ceramic a promising multifunctional material for device applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Haijuan Li, Jian Zhuang, Alexei A. Bokov, Nan Zhang, Jie Zhang, Jinyan Zhao, Wei Ren, Zuo-Guang Ye
Summary: The study investigates the evolution of structure and relaxor behavior in the PFW-BFO solid solution, revealing an enhancement of relaxor behavior with increasing BFO substitution. A temperature-composition phase diagram shows that increased compositional and charge disorders from BFO substitution lead to an increase in the number and size distribution of polar nanoregions in the ER phase, enhancing relaxor behavior. Subsequent substitution of BFO above a certain threshold leads to a temperature-stable variation of high dielectric constant, making the solid solution attractive for high energy density capacitors.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Cai Jin, Xiaowen Li, Wenqiao Han, Qi Liu, Sixia Hu, Yanjiang Ji, Zedong Xu, Songbai Hu, Mao Ye, Meng Gu, Yuanmin Zhu, Lang Chen
Summary: Integrating materials characteristics through constructing artificial superlattices has led to the successful synthesis of BiFeO3/BiMnO3 SLs with considerable ferroelectric polarizations and tunable magnetic moments. The tunable magnetic moments of SLs are closely linked to the dimensionality of BiFeO3 layers, with the superexchange interaction of Fe-O-Mn in SLs tending towards antiferromagnetic rather than ferromagnetic as the dimensionality of BiFeO3 per period is reduced. This interlayer modulation effect in SLs offers an attractive way to precisely control multiple order parameters in a multiferroic oxide system.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Environmental Sciences
Girish Gupta, Sushil K. Kansal, Ahmad Umar, Sheikh Akbar
Summary: A highly crystalline BiFeO3 catalyst was synthesized through a facile combustion method and effectively used for the degradation of ofloxacin drug under visible light exposure. The optimized conditions resulted in 80% degradation of the drug in 180 minutes and a 64% reduction in TOC. The photocatalytic experiments also demonstrated the good stability of the fabricated catalyst even after five cycles.
Article
Materials Science, Ceramics
Marcos A. S. Mariano, Yanela Mendez-Gonzalez, Atair C. Silva, Adamo F. G. Monte, Elton C. Lima, Ruyan Guo, Amar S. Bhalla, Jose de los Santos Guerra
Summary: This study reports the multifunctional properties of lead-free BiFeO3-La (BFO-La) thin films, with a focus on the effects of lanthanum doping on structural and optical properties. Lanthanum doping was found to significantly affect defect concentrations, crystallinity, and optical absorption properties of the thin films. The Bi1-xLaxFeO3 (x = 0-20) compositions showed lower direct bandgap values and are considered potential candidate materials for high-performance photovoltaic devices.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Gilad Orr, Andrey Gorychev, Paul Ben Ishai
Summary: This study analyzed the complex dielectric permittivity of a sintered ceramic tablet at different temperatures and found two temperature-activated relaxation processes. The first process is related to hopping processes between Fe3+ and Fe2+ induced by oxygen vacancies, while the second process is associated with dynamic rearrangements of domain boundaries. The results also revealed a decay in the ferroelectric phase transition with repeated heating cycles.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Hyeon Jun Lee, Youngjun Ahn, Samuel D. Marks, Deepankar Sri Gyan, Eric C. Landahl, Jun Young Lee, Tae Yeon Kim, Sanjith Unithrattil, Sae Hwan Chun, Sunam Kim, Sang-Youn Park, Intae Eom, Carolina Adamo, Darrell G. Schlom, Haidan Wen, Sooheyong Lee, Ji Young Jo, Paul G. Evans
Summary: The study finds that optical excitation can generate ultrafast stress in the classical multiferroic material BiFeO3. The time scale of stress generation is determined by the dynamics of the excited electronic states and the coupling between electronic configuration and structure. The experimental results provide insights into stress generation mechanisms and point to new applications of nanoscale multiferroics and related ferroic complex oxides.
Article
Physics, Applied
Guoqing Liu, Min Liu, Jin Liu, Shuang Deng, Anguo Peng
Summary: This work investigates the structural and magnetic effects of BiFe1-xZnxO3 (x = 0, 0.05, 0.10, 0.15, 0.20, 0.25) multiferroic materials synthesized via a sol-gel auto-combustion method. Results show that Zn-substitution in BiFeO3 has adverse effects on the formation of pure BiFeO3, leading to a magnetic destruction due to a phase transition or successful ion substitution.
MODERN PHYSICS LETTERS B
(2021)
Article
Chemistry, Physical
Bappa Sona Kar, M. N. Goswami, P. C. Jana
Summary: La2O3-substituted polycrystalline 0.56BiFeO(3)-0.44BaTiO(3) ceramics were prepared via conventional solid-state reaction process, with investigations on crystal structure, dielectric, magnetic, and impedance properties. La substitution enhanced the multiferroic nature of the materials, as evidenced by improved energy storage density and remnant magnetization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Astronomy & Astrophysics
Steven B. Giddings, Julie Perkins
Summary: In this article, a general description of the evolving quantum state of a Schwarzschild black hole is given using the quantum field theory approximation. The description depends on the choice of time slices, coordinates on the slices and mode bases. The evolving state can simplify the analysis and has connections to information-theoretic investigation of black hole evolution.
Article
Physics, Condensed Matter
Yan Wang
Summary: The structure of La doped BiFeO3 at low doping content is not completely the believed hexagonal R3c phase, but contains an orthorhombic crystal symmetry. Under certain pressure conditions, a phase transition sequence from hexagonal R3c phase to monoclinic C2/m phase and then to orthorhombic Pnma phase was observed in La-doped BiFeO3.
SOLID STATE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Chen Tian, Zhenye Liang, Liwei Cheng, Shanglei Feng, Yiwen Li, Yingguo Yang, Lina Li
Summary: This study introduces a novel method of using indium (In)-based perovskite to remove heavy metal pollution in river and lake sediments, providing a research platform for the comprehensive reuse of sediments.
Article
Chemistry, Physical
Anusree Das, Nilesh Khamaru, Sudipta Bandyopadhyay, Souvik Chatterjee, Dipankar Das
Summary: This study synthesized nanocomposites (NCs) containing SrFe12O19 and Bi0.9Dy0.1FeO3, where Dy-substitution increased the magnetization and dielectric constant of BiFeO3 (BFO), while increasing SFO content in the NCs led to higher magnetization but lower dielectric constant. The changes in capacitance of the NC samples in the presence of a magnetic field up to 150 kOe indicated a substantial enhancement of the magnetoelectric (ME) coupling coefficient of BFO in the nanocomposites, which tended to improve with higher SFO content in the NCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Md Shahadat Hossain, Baskaran Palanivel, Samuel Lalthazuala Rokhum, Muthamizh Selvamani, Siva Vadivel, Ali Alsulmi, Romulo R. Macadangdang Jr, Arunmetha Sundaramoorthy
Summary: Multiferroic bismuth ferrite nanostructures with 3D nanoparticulate and 2D nanoflaky structures were synthesized through a hydrothermal process. The 2D nanoflaky structures exhibited improved opto-electronic properties and catalytic activity compared to the 3D nanoparticulate structures.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Hu Cheng, Junran Zhang, Pengfei Yu, Chao Gu, Xiangting Ren, Chuanlong Lin, Xiaodong Li, Yusheng Zhao, Shanmin Wang, Yanchun Li
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Physics, Condensed Matter
Xin Li, Zhipeng Yan, Saqib Rahman, Jinbo Zhang, Ke Yang, Xiaodong Li, Jaeyong Kim, Xuefeng Sun, Lin Wang
JOURNAL OF PHYSICS-CONDENSED MATTER
(2020)
Article
Materials Science, Multidisciplinary
Zhipeng Yan, Ketao Yin, Zhenhai Yu, Xin Li, Mingtao Li, Ye Yuan, Xiaodong Li, Ke Yang, Xiaoli Wang, Lin Wang
APPLIED MATERIALS TODAY
(2020)
Review
Physics, Multidisciplinary
Junran Zhang, Yixuan Xu, Shihai An, Ying Sun, Xiaodong Li, Yanchun Li
Article
Physics, Multidisciplinary
Ya-Ting Jia, Chun-Sheng Gong, Yi-Xuan Liu, Jian-Fa Zhao, Cheng Dong, Guang-Yang Dai, Xiao-Dong Li, He-Chang Lei, Run-Ze Yu, Guang-Ming Zhang, Chang-Qing Jin
CHINESE PHYSICS LETTERS
(2020)
Article
Chemistry, Physical
Zhipeng Yan, Nana Li, Linyan Wang, Zhenhai Yu, Mingtao Li, Jinbo Zhang, Xiaodong Li, Ke Yang, Guoying Gao, Lin Wang
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Physics, Condensed Matter
Enlai Dong, Bo Liu, Qing Dong, Xuhan Shi, Xin Ma, Ran Liu, Xuebin Zhu, Xuan Luo, Xiaodong Li, Yanchun Li, Quanjun Li, Bingbing Liu
PHYSICA B-CONDENSED MATTER
(2020)
Article
Physics, Multidisciplinary
Chuanlong Lin, Xuqiang Liu, Dongliang Yang, Xiaodong Li, Jesse S. Smith, Bihan Wang, Haini Dong, Shourui Li, Wenge Yang, John S. Tse
PHYSICAL REVIEW LETTERS
(2020)
Article
Materials Science, Multidisciplinary
Jing Guo, Cheng Huang, Huixia Luo, Huaixin Yang, Linlin Wei, Shu Cai, Yazhou Zhou, Hengcan Zhao, Xiaodong Li, Yanchun Li, Ke Yang, Aiguo Li, Peijie Sun, Jianqi Li, Qi Wu, Robert J. Cava, Liling Sun
Summary: Pressure-induced three superconducting transitions are observed in TaTe2, driven respectively by the suppression of CDW state, the change of β angle in the M phase, and the transition of M-to-HP phase.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Physics, Applied
Lei Liu, Hua Y. Geng, Xiaolong Pan, Hong X. Song, Sergey Ivanov, Roland Mathieu, Matthias Weil, Yanchun Li, Xiaodong Li, Peter Lazor
Summary: Multiferroic oxides, which have large bandgaps, are potential candidates for overcoming the disadvantages of metal-halide perovskites as light absorbers in solar cell applications. However, their use in this field is currently limited. In this study, the authors investigated the bandgap reduction mechanism of multiferroic Mn3TeO6 (MTO) under high pressure. They discovered a sequence of irreversible phase transitions and found that the shortening of Mn-O-Mn bonding and the decrease in octahedra connectivity explain the giant bandgap reduction in MTO. These findings will contribute to the design and synthesis of next-generation light absorbers for solar cells.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Yixuan Xu, Hu Cheng, Junlong Li, Jiayue Jiang, Yu Gong, Dongliang Yang, Xiaodong Li, Yanchun Li
Summary: The quasi-2D honeycomb lattice in iridate Na2IrO3 undergoes a continuous structural modification under high pressures, as revealed by X-ray diffraction experiments. The temperature-dependent resistance measurement shows a transition from semiconductor to metal behavior at around 30 GPa, consistent with the X-ray diffraction results. Based on these findings and density functional theory calculations, a monoclinic structure with P2(1)/m symmetry is proposed for the high-pressure phase, which could facilitate the realization of the Kitaev quantum spin liquid state in Na2IrO3.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Hu Cheng, Yixuan Xu, Xuefeng Zhou, Yu Gong, Dongliang Yang, Xiaodong Li, Yanchun Li
Summary: Over the past decade, external pressure has been found to play a crucial role in modulating the structures and properties of sesqui-chalcogenides. This research investigates pressure-induced structural phase transitions, alloying, and topological superconductivity in two ternary tetradymites, Bi2Te2Se and Bi2Se2Te. The study reveals novel structural transitions under pressure and the occurrence of superconductivity in one of the compounds.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Cheng Hu, Yixuan Xu, Yu Gong, Dongliang Yang, Xiaodong Li, Yanchun Li
Summary: In this study, the phase transitions, amorphization, and alloying behaviors of the binary semiconductor antimony trisulfide (Sb2S3) were observed. The pressure transmitting medium was found to have a significant effect on these changes. The results indicate that the Sb2S3's electronic structure is altered under high pressure, making it a promising candidate for high-pressure thermoelectric materials.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Zhiying Guo, Xingyu Hao, Juncai Dong, Haijing Li, Yu Gong, Dongliang Yang, Jiangwen Liao, Shengqi Chu, Yanchun Li, Xiaodong Li, Dongliang Chen
Article
Materials Science, Multidisciplinary
Hualei Sun, Xiaodong Li, Yazhou Zhou, Jia Yu, Benjamin A. Frandsen, Shan Wu, Zhijun Xu, Sheng Jiang, Qingzhen Huang, Edith Bourret-Courchesne, Liling Sun, Jeffrey W. Lynn, Robert J. Birgeneau, Meng Wang
