Article
Chemistry, Multidisciplinary
Qianwei Huang, Zibin Chen, Matthew J. Cabral, Haosu Luo, Hongwei Liu, Shujun Zhang, Yulan Li, Yiu-Wing Mai, Simon P. Ringer, Xiaozhou Liao
Summary: The study investigates the impact of introducing dislocation loops via electron beam on the motion of ferroelectric domain walls in ferroelectric nanoplates. It was found that defects caused by localized strain fields suppress the motion of domain walls, and the pinning effect can be enhanced by multiple domain walls embedded with defect arrays. This suggests the potential for manipulating domain switching in ferroelectric nanoplates using electron beams.
Article
Nanoscience & Nanotechnology
Artemios Karvounis, Rachel Grange
Summary: In this study, deformable assemblies of barium titanate nanocrystals were fabricated using electro-mechanical force on top of plasmonic metasurfaces. The mechanical deformation of the nanobeams was driven by the piezoelectric response of the barium titanate nanocrystals. The plasmonic-ferroelectric nanostructures enabled subwavelength interaction lengths and supported reflection modulation.
Article
Multidisciplinary Sciences
Priyanka Kumari, Bijaya Basnet, Hao Wang, Oleg D. Lavrentovich
Summary: Solid ferroelectrics have aligned polarization along crystallographic axes, with different polarization domains separated by flat domain walls. In a ferroelectric nematic liquid crystal without crystallographic axes or facets, domain walls shape as conic sections to bisect the angle between neighboring polarization fields and avoid electric charges. The intrinsic properties of conic sections play a central role in liquid ferroelectrics.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Jinghan Gao, Wenfeng Liu, Lei Zhang, Fanyi Kong, Yi Zhao, Shengtao Li
Summary: In this study, a semi-solution method was used to enhance the dielectric and ferroelectric properties of acceptor-donor co-doped BaTiO3 ceramics, achieving higher peak dielectric constant and maximum polarization with less apparent aging phenomena. Microscopic analysis revealed that the property enhancement was attributed to the control of compositional homogeneity and oxygen vacancies.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Bhupendra Pratap Singh, Samiksha Sikarwar, Rajiv Manohar, Asmita Shah, Dharmendra Pratap Singh, Jakub Herman, Kamal Kumar Pandey
Summary: The study investigates the properties of BaTiO3 NPs in a nematic matrix, finding that they enhance dielectric permittivity and improve electro-optic response speed. The introduction of BaTiO3 NPs in the nematic matrix increases dielectric anisotropy and significantly boosts electro-optic response speed.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Multidisciplinary Sciences
Yeseul Yun, Lutz Muehlenbein, David S. Knoche, Andriy Lotnyk, Akash Bhatnagar
Summary: This study presents a strategy to enhance photocurrent by sandwiching ferroelectric BaTiO3 between paraelectric SrTiO3 and CaTiO3 in a superlattice structure, achieving a significant enhancement that can be tuned by the periodicity of the superlattice, attributed to the large dielectric permittivity and lowered bandgap of the materials involved.
Article
Chemistry, Physical
Jing Shi, Rizhuang Dong, Jiayi He, Daowei Wu, Wenchao Tian, Xiao Liu
Summary: This study investigated the structural, dielectric, and ferroelectric properties of lead-free ceramics based on the ternary system of BaTiO3 (BT). It was observed that the dopant concentration influenced the structural evolution from tetragonal to pseudocubic phase. The dielectric response showed diffusive peaks and relaxor behavior, indicating a transition from ferroelectric to relaxor state. The ceramics exhibited slim polarization hysteresis loops and electrical inhomogeneities caused by excessive dopant addition, leading to degraded electric breakdown strength. The oxygen vacancy hopping mechanism was proposed to explain the diffuse dielectric response at high dopant concentrations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Mechanics
Andrey Tumarkin, Natalya Tyurnina, Nikolay Mukhin, Zoya Tyurnina, Olga Sinelshchikova, Alexander Gagarin, Eugeny Sapego, Yriy Kretser
Summary: Glass-ceramic composites consisting of potassium-iron-silicate glass and barium titanate in various proportions were successfully synthesized by low-temperature sintering. The electrical properties of the composites, such as permittivity and tunability, can be improved by annealing the samples in an oxygen-containing environment.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Ceramics
Gyung Hyun Ryu, Preston C. Bowes, John R. McGarrahan, Douglas L. Irving, Elizabeth C. Dickey
Summary: This study investigates the synergistic effects of co-doping BaTiO3 with acceptors and donors to control point defect chemistry and electrical properties, aiming to limit electronic and ionic conductivities. Results show that co-doping with Mn and Y can increase electrical resistivity, maintain independent electrical conductivity under oxidizing conditions, and improve time-dependent dielectric degradation resistance. These effects are attributed to a Fermi level pinning mechanism and reduced oxygen vacancy concentration.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Engineering, Environmental
Yang Li, Yi Liu, Mingyang Tang, Jingwen Lv, Fukang Chen, Quan Li, Yan Yan, Fei Wu, Li Jin, Gang Liu
Summary: A two-step strategy has been proposed in this study to enhance the energy storing performance of lead-free ferroelectric ceramics, which includes adjusting the ratio of chemical elements and optimizing the preparation process, and has been proven to significantly improve the energy storage performance, especially achieving superhigh energy storage density for a new ceramic material under high electric field.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Chen Zhang, Zixin Zhou, Zhuming Tang, Didier Ballo, Chun Wang, Gang Jian
Summary: The Sc2O3 doped Ba(Zr0.1Ti0.9)O-3 ferroelectric ceramics were investigated for their microstructure, domain structure, dielectric and ferroelectric properties. It was found that Sc2O3 doping decreased the grain size, while both 90 degrees and 180 degrees ferroelectric domains coexisted in the ceramics. The phase transition temperature and dielectric permittivity maximum decreased with increasing Sc2O3 content, but the relative dielectric constant temperature stability was improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Zhiyong Liu, Shuaichang Xu, Tao Li, Bing Xie, Kun Guo, Jinshan Lu
Summary: High-entropy oxides can be designed as new ferroelectric materials with interesting physical consequences by selecting various elements to achieve a single-phase structure. The high-entropy perovskite ceramics exhibit excellent chemical homogeneity and effectively disorder the symmetry of the crystal structure to achieve a robust ferroelectric polarization. This approach provides additional opportunities to discover and tailor the functional properties in entropy-stabilized ferroelectrics.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Yezhan Lin, Yizheng Bao, Shiguang Yan, Bowen Chen, Kai Zou, Hengchang Nie, Genshui Wang
Summary: The thermal conductivity k of BaTiO3 ceramic can be modulated by adjusting the ferroelectric polarization P, providing a new research route for thermal management technology.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jie Wu, Gaochao Zhao, Chengbing Pan, Kun Tao, Jie Yang, Xuebin Zhu, Peng Tong, Lihua Yin, Wenhai Song, Yuping Sun
Summary: We investigated the effect of A-site disorder on the properties of lead-free Ba1-x-ySrxCayTiO3 perovskites and found that decreasing A-site disorder leads to reduced tetragonal distortion, ferroelectric transition temperature, and the temperature of the maximum electrocaloric effect. By optimizing the A-site disorder, the highest adiabatic temperature change can be achieved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
S. A. Gridnev, I. I. Popov, M. A. Kashirin, A. Bocharov
Summary: By investigating the temperature dependences of internal friction and Young's modulus in ferroelectric ceramics, the effects of different external conditions on the material's performance were observed. The addition of 0.2 mass. % La led to an increase in internal friction and a decrease in the internal friction maximum near the phase transition temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Wenjia Wang, Pu Luo, Ying Wei, Yuanchao Ji, Chang Liu, Xiaobing Ren
Summary: The study focuses on the characteristics and properties of a spinodal strain glass alloy Mn60Cu40, which exhibits a transition from strain glass to normal martensite with aging. The spinodal strain glass shows non-magnetic Elinvar behavior and high damping capacity. The findings suggest that spinodal strain glasses and their novel properties may also be found in other metallic and ceramic spinodal materials.
Article
Materials Science, Multidisciplinary
Wenjia Wang, Yuanchao Ji, Minxia Fang, Dong Wang, Shuai Ren, Kazuhiro Otsuka, Yunzhi Wang, Xiaobing Ren
Summary: In this work, a systematic study of a reentrant strain glass transition in a Ti50Ni34Cu16 shape memory alloy is reported. The transition is characterized by temperature invariance, deviation in heat flow and resistivity curves, frequency-dependent behavior, and a peak in a zero-field cooling curve. In-situ microstructural observations reveal the unchanged B19 martensitic domain pattern and the emergence of nanodomains with local 4H symmetry. A new phase diagram is established based on experimental results, which helps understand the formation of the reentrant strain glass. The study predicts the presence of more unusual properties in reentrant strain glass materials.
Correction
Materials Science, Multidisciplinary
Xin Song, Tianyu Ma, Xianglong Zhou, Fan Ye, Tao Yuan, Jingdong Wang, Ming Yue, Feng Liu, Xiaobing Ren
Article
Materials Science, Multidisciplinary
Minxia Fang, Fanghua Tian, Kaiyan Cao, Xiaoqin Ke, Yin Zhang, Sen Yang, Wenliang Zuo, Yao Liu, Tianyu Ma, Xiaoping Song, Yuanchao Ji, Xiaobing Ren
Summary: Magnetic refrigeration technique based on magnetocaloric effect is of interest due to its high energy-converting efficiency and environmental friendliness. In this study, a combination of large |4S| (40 J kg(-1)1K(-1)) and large |4Tad| (15 K) under 5 T around room temperature was achieved in Ni-Mn-In Heusler alloys. The excellent combination occurred near the co-occurrence point of martensitic and ferromagnetic transitions. The magnetocaloric properties can be understood by analyzing the free energy barrier and the temperature range of field induced magnetic transition near the co-occurrence point.
Article
Materials Science, Multidisciplinary
Shuangshuang Zhao, Qianglong Liang, Chuanxin Liang, Dong Wang, Yuanchao Ji, Yu Wang, Yufeng Zheng, Xiangdong Ding, Michale Mills, Xiaobing Ren, Yunzhi Wang
Summary: This study reports the quasi-linear superelasticity with ultralow elastic modulus in TiNi shape memory alloys during tensile cyclic deformation. The suppression of normal martensitic transformation and the appearance of strain glass transition behavior were observed. High-density defects involving twin boundaries and dislocations were found under tensile cyclic deformation. Stabilized B19' nanodomains were also observed after deformation. These deformation defects and stabilized nanodomains have a significant influence on the transition behavior and mechanical property, resulting in the detected quasi-linear superelasticity with ultralow modulus.
ADVANCED ENGINEERING MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Dong Wang, Yuanchao Ji, Xiaobing Ren, Yunzhi Wang
Summary: Strain glass is a new strain state discovered recently in ferroelastic systems, characterized by nanoscale martensitic domains and unique properties such as linear superelasticity and large magnetostriction. This review discusses experimental characterization, theoretical models, unresolved issues, and challenges in strain glass study.
ANNUAL REVIEW OF MATERIALS RESEARCH
(2022)
Correction
Physics, Applied
Patan Yousaf Khan, Shuai Ren, Tianyu Ma, Xiaobing Ren
APPLIED PHYSICS LETTERS
(2022)
Correction
Chemistry, Physical
Munzali Musa, Xin Song, Xianglong Zhou, Wentao Jia, Tao Yuan, Tianyu Ma, Xiaobing Ren
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Correction
Chemistry, Physical
Chengyang Xiong, Yan Li, Jian Zhang, Yu Wang, Wentao Qu, Yuancao Ji, Lishan Cui, Xiaobing Ren
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Deqing Xue, Ruihao Yuan, Yuanchao Yang, Jianbo Pang, Yumei Zhou, Xiangdong Ding, Turab Lookman, Xiaobing Ren, Jun Sun, Dezhen Xue
Summary: This study demonstrates the control of martensitic transformation to strain glass transition through defect doping, leading to a wide range of elastocaloric effect. Furthermore, an inverse elastocaloric effect is observed in strain glass alloy with a history of zero-field cooling. This research provides a design recipe for expanding the temperature range for a good elastocaloric effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Zhonghua Dai, Shengbin Wang, Yong Liu, Fanbo Zhang, Weiguo Liu, Xin Zhao, Xiangdong Ding, Minxia Fang, Xiaobing Ren
Summary: In this study, by introducing SrSc0.5Nb0.5O3 into (Bi0.5Na0.5Ti0.95Al0.025Nb0.025O3) [(1-x)BNTA-xSSN], a high recoverable energy storage density (W-rec) of about 2.7 J/cm(3) and energy storage efficiency (eta) of approximately 76% at 210 kV/cm were achieved at x=0.1; furthermore, eta was further improved to 85% at x=0.2. The modified .9BNTA-.1SSN showed excellent stability (thermal and frequency stability) at 150 kV/cm, surpassing other lead-free ceramics. The enhanced energy storage performance is attributed to increased relaxation degree and the formation of ferroelectric nanodomains, while the improved E-b is due to increased electrical resistivity and decreased grain size.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Liqiang He, Yang Yang, Chang Liu, Yuanchao Ji, Xiaojie Lou, Lixue Zhang, Xiaobing Ren
Summary: To achieve efficient and high-density energy storage in electrostatic capacitors, dielectric materials need to exhibit good performance over a wide temperature range. In this study, a crossover composition between antiferroelectric and relaxor antiferroelectric states is found to enable a high polarization change and low hysteresis. This leads to the development of lead-free Ag1-3xLaxNb0.9Ta0.1O3 (x=0.03) ceramics that demonstrate a large recoverable energy storage density (Wrec -8.6 J/cm3) with high efficiency (eta -85%) under 460 kV/cm. The x=0.03 ceramics also show excellent energy storage properties (Wrec > 6.8 J/cm3 with ultrahigh eta -90%) in the temperature range of 20-120 degrees C, thanks to the coexistence of micro- and nano-antiferroelectric domains.
Article
Materials Science, Multidisciplinary
Xiaoqin Ke, Dong Wang, Sen Yang, Xiaobing Ren, Yunzhi Wang
Summary: We report that the single domain generated from the vortex in ferroelectric nanodots will transform back to the vortex structure after removal of the external electric field, providing a large recoverable electrostrain. This recoverable electrostrain maintains a large value and a wide temperature range. The good recoverability is mainly attributed to the dipole-dipole interaction energy and the elastic interaction energy in the system. This work may contribute to the development of miniaturized actuators in MEMS or NEMS.
Article
Physics, Multidisciplinary
Minxia Fang, Yuanchao Ji, Yan Ni, Wenjia Wang, Hengmin Zhang, Xifei Wang, Andong Xiao, Tianyu Ma, Sen Yang, Xiaobing Ren
Summary: In this letter, researchers report a surprising low-temperature toughening phenomenon in a La-doped CaTiO3 perovskite ceramic. The fracture toughness of the ceramic increases by 2.5 times when cooling from above room temperature down to cryogenic temperature, due to the emergence of nanosized orthorhombic ferroelastic domains from the existing tetragonal ferroelastic matrix. This finding may lead to the design of tough ceramics with a wide temperature range and provide insights into reentrant transitions in other ferroic systems.
PHYSICAL REVIEW LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Chao Zhou, Tieyan Chang, Zhiyong Dai, Yuanliang Chen, Chenyang Guo, Yoshitaka Matsushita, Xiaoqin Ke, Adil Murtaza, Yin Zhang, Fanghua Tian, Wenliang Zuo, Yu-sheng Chen, Sen Yang, Xiaobing Ren
Summary: This paper investigates the nature of phase transitions in TbCo2, a Laves-phase rare-earth-transition metal intermetallic compound. Through experimental evidence and interpretation using Landau theory, it is determined that the transition in TbCo2 is a first-order transition. This study contributes to a deeper understanding of phase transitions in magnetic materials involving both magnetic and structural transitions.
