PARAELECTRIC

作品数：15被引量：4H指数：1
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相关领域：一般工业技术理学电气工程更多>>
相关作者：种瑞峰王秀丽李灿范峰滔范大勇更多>>
相关机构：中国科学院大学中国科学院更多>>
相关期刊：《Computers, Materials & Continua》《Chinese Physics B》《Journal of Modern Physics》《Journal of Wuhan University of Technology(Materials Science)》更多>>
相关基金：国家自然科学基金更多>>
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Paraelectric Doping Simultaneously Improves the Field Frequency Adaptability and Dielectric Properties of Ferroelectric Materials:A Phase-Field Study
《Computers, Materials & Continua》2024年第10期213-228,共16页Zhi Wang Jinming Cao Zhonglei Liu Yuhong Zhao 
supported by National Defense Basic Scientific Research Program of China(Grant Nos.JCKY2020408B002,WDZC2022-12).
Recent years,the polarization response of ferroelectrics has been entirely studied.However,it is found that the polarization may disappear gradually with the continually applied of electric field.In this paper,taking ...
关键词：Ferroelectric ceramics dielectric properties electric field frequency DOPING phase field method 
Designing silver niobate-based relaxor antiferroelectrics for ultrahigh energy storage performance
《Journal of Advanced Ceramics》2024年第8期1282-1290,共9页Zhengdong Hu Zhen Liu Bing Han Haonan Peng Kai Da Zequan Xu Zhengqian Fu Zhigao Hu Genshui Wang 
This work was supported by the National Natural Science Foundation of China(Nos.12204503 and U2002217);the Key Research Program of the Chinese Academy of Sciences(No.ZDRW-CN-2021-3-1-18);the Shanghai Pujiang Program(No.22PJD085);the Natural Science Foundation of Shanghai(No.23ZR1472400);the Young Elite Scientists Sponsorship Program by the China Association for Science and Technology(No.YESS20210265).
AgNbO_(3)(AN)and modified AgNbO_(3) have been extensively investigated as promising lead-free antiferroelectric(AFE)energy storage materials.Previous studies have focused mainly on the use of an ion dopant at the A/B ...
关键词：AgNbO_(3)(AN)-based ceramics relaxor antiferroelectric(RAFE) paraelectric(PE) energy storage performance 
Combinatorial optimization of perovskite-based ferroelectric ceramics for energy storage applications
《Journal of Advanced Ceramics》2024年第7期877-910,共34页Suwei Dai Mengyang Li Xiaowen Wu Yunyi Wu Xiang Li Yanan Hao Bingcheng Luo 
support from the National Natural Science Foundation of China(No.52202154);support from the Highperformance Computing Platform of China Agricultural University.
With the increasing impacts of climate change and resource depletion,dielectric capacitors,with their exceptional stability,fast charging and discharging rates,and ability to operate under more extreme conditions,are ...
关键词：PEROVSKITE hysteresis loop relaxor ferroelectric(RFE) paraelectric(PE) antiferroelectric(AFE) energy storage 
Electric field-induced phase transition from the glasslike to paraelectric phase and dielectric spectra hardening in PMN single crystal
《Journal of Advanced Dielectrics》2023年第2期1-5,共5页E.Koroleva A.Molokov S.Vakhrushev 
The study was supported by Russian Science Foundation grant no.22-12-00328,https://rscf.ru/en/project/22-12-00328/.
One of the key points in the physics of the relaxors is their response to the applied DC field.Many studies of this topic were made,in particular on the influence of the field on the dielectric properties.However,prac...
关键词：Relaxor FERROELECTRICS dielectric spectroscopy phase transition lead magnoniobate 
Numerical Study of Switching Behavior in Finite Media Subject to 3D Ferroelectric-Paraelectric Interactions and Inspection of Calibration Effects
《Numerical Mathematics(Theory,Methods and Applications)》2021年第1期113-143,共31页P.-W.Martelli S.M.Mefire 
We study numerically the switching behavior aspects and calibration effects relative to finite media embedding fully a three-dimensional ferroelectric layer in a paraelectric environment.Our approach makes use of the ...
关键词：Electroactive media FERROELECTRICITY ELECTROSTATICS Ginzburg-Landau systems finite elements inexact Newton methods numerical simulations 
Nonlinear Terahertz Electromagnetic Waves in SrTiO<sub>3</sub> Crystals under Focusing被引量：1
《Journal of Electromagnetic Analysis and Applications》2016年第10期226-239,共15页Volodymyr Grimalsky Svetlana Koshevaya Jesus Escobedo-Alatorre Margarita Tecpoyotl-Torres 
The nonlinear waves of terahertz (THz) range are investigated in the paraelectric crystals SrTiO3 at the temperatures ~77 K. The frequency dispersion is important there. In the absence of a bias electric fi...
关键词：THz Waves SrTiO3 Paraelectric NONLINEARITY Frequency Dispersion FOCUSING Modulation Instability Generation of Harmonics 
A tetragonal tungsten bronze-type photocatalyst:Ferro-paraelectric phase transition and photocatalysis
《Chinese Journal of Catalysis》2016年第8期1257-1262,共6页范大勇 种瑞峰 范峰滔 王秀丽 李灿 冯兆池 
supported by the National Natural Science Foundation of China (211373213,21373212)~~
Although ferroelectrics have potential applications in photocatalysis due to their highly efficient charge separation, their mechanism of charge separation is still unknown. A ferroelectric Sr0.7Ba0.3Nb2O6 （SBN‐70）...
关键词：PHOTOCATALYSIS Ferro-paraelectric phase transition Sr0.7Ba0.3Nb2O6 Anomalous photovoltaic effect Temperature-dependent photolumi-nescence excitation spectrum 
Critical behavior of the spontaneous polarization and the dielectric susceptibility close to the cubic-tetragonal transition in BaTiO_(3)
《Journal of Advanced Dielectrics》2015年第3期50-53,共4页H.Yurtseven F.Oguz 
Using Landau mean field model,the spontaneous polarization and the dielectric susceptibility are analyzed as functions of temperature and pressure close to the cubic-tetragonal(ferroelectric-paraelectric)transition in...
关键词：Dielectric susceptibility spontaneous polarization ferroelectric-paraelectric transition Landau mean field model BaTiO_(3) 
Electronic and Optical Properties of KNbO_3,NaNbO_3 and K_(0.5) Na_(0.5) NbO_3 in Paraelectric Cubic Phase:a Comparative First-principles Study被引量：1
《Chinese Journal of Structural Chemistry》2012年第8期1095-1104,共10页周树兰 赵显 江向平 韩晓东 
Supported by the National Natural Science Foundation of China (Nos. 50862005,51062005,91022034 and 91022027);the Jiangxi Natural Science Foundation and Cooperative Project (Nos. 2008GZC000,2009JX02060,2010GQW0038 and [2008]212);Foundation of Jiangxi Educational Committee (GJJ11204);the Jiangxi Colleges and Universities "Advanced Ceramics" scientific and technological innovation team
The structural,electronic and optical properties of KNbO 3 （KN）,NaNbO3（NN）and K05 Na0.5NbO3（KNN） in paraelectric cubic phase were calculated employing the plane-wave pseudopotential method based on density funct...
关键词：the first principle electronic structure optical properties （K Na）NbO 3 
Validity of Nonlinear Thermodynamic Models in Ferroelectric-Paraelectric Bilayers and Superlattices
《Chinese Physics Letters》2012年第5期221-224,共4页LIU Yang PENG Xing-Ping 
Supported by the Major Project of Gansu Provincial Science and Technology Department(1102GKDD035).
We examine the validity of nonlinear thermodynamic models which incorporate the contribution of electrostatic coupling and interfacial space charge in ferroelectric-paraelectric bilayers.Inconsistency of the direction...
关键词：theory. THERMODYNAMIC FERROELECTRIC 
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