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电子铁电体与巨介电材料的关键基础问题及新体系探索
  • 项目名称：电子铁电体与巨介电材料的关键基础问题及新体系探索
  • 项目类别：重点项目
  • 批准号：50832005
  • 申请代码：E0204
  • 项目来源：国家自然科学基金
  • 研究期限：2009-01-01-2012-12-31
  • 项目负责人：陈湘明
  • 负责人职称：教授
  • 依托单位：浙江大学
  • 批准年度：2008
中文摘要：

本项目拟研究几个典型材料体系的电子铁电性与巨介电效应的物理本质与结构根源；揭示离子、电荷、缺陷、自旋有序对电子铁电性及巨介电效应的贡献，掌握本征与非本征因素对巨介电效应的影响规律；揭示电子铁电体与巨介电常数陶瓷特殊结构特征的形成与演化规律及其结构性能调控原理，寻求巨介电常数与低损耗协调的有效途径；并在此基础上探索电子铁电体与巨介电材料新体系。可望丰富铁电与介电理论，为相关材料的应用奠定基础，并大大促进多铁性材料领域的发展。

中文主题词： 电子铁电体；巨介电材料；多铁性；介电弛豫；电荷有序
英文摘要：

Electronic ferroelectrics；Giant-K materials；Multiferroics；Dielectric relaxation；Charge ordering

英文主题词： Electronic ferroelectrics；Giant-K materials；Multiferroics；Dielectric relaxation；Charge ordering
结论摘要：

系统研究了CaCu3Ti4O12、Ba(Fe0.5M’0.5)O3、LuFe2O4及相关陶瓷、双钙钛矿锰酸盐等典型材料体系的电子铁电性与巨介电效应的物理本质与结构根源；揭示了离子、电荷、缺陷、自旋有序对电子铁电性及巨介电效应的贡献，掌握了本征与非本征因素对巨介电效应的影响规律；揭示了电子铁电体与巨介电常数陶瓷特殊结构特征的形成与演化规律及其结构性能调控原理，找到了巨介电常数与低损耗协调的有效途径；并在此基础上探索出了K2NiF4型镍酸盐以及充满型钨青铜铁酸盐巨介电与多铁性材料新体系。

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期刊论文
Microstructures and dielectric properties of spark plasma sintered Ba0.4Sr0.6TiO3/CaCu3Ti4O12 compos
Crystal structure, dielectric relaxation and magnetic properties of Ba5NdNiNb9O30 ceramics
Dielectric, Ferroelectric, and Magnetic Characteristics of LuFeCuO4 Ceramics
Low-temperature dielectric behavior of BiFeO3-modified CaTiO3 incipient ferroelectric ceramics
Dielectric relaxation in LuFeO3 ceramics
Structure, magnetic, and dielectric properties of La2Ni(Mn1-xTix)O-6 ceramics
First-Principles Study on the Differences of Possible Ferroelectric Behavior and Magnetic Exchange I
Enhancement of Giant Dielectric Response in CaCu3Ti4O12 Ceramics by Zn Substitution
Dielectric and magnetic characteristics of LuFeMgO(4) ceramics
Magnetic and magnetodielectric properties of Bi-substituted yttrium iron garnet ceramics
Dielectric properties of CaCu3Ti4O12, Ba(Fe1/2Nb1/2)O-3, and Sr(Fe1/2Nb1/2)O-3 giant permittivity ce
Preparation of La2NiMnO6 thin films on Pt/TiO2/SiO2/Si substrates by pulsed laser deposition
Effects of Nd-substitution on microstructures and dielectric characteristics of CaCu3Ti4O12 ceramics
Large anisotropic remnant magnetization tunability in (011)-La2/3Sr1/3MnO3/0.7Pb(Mg2/3Nb1/3)O3-0.3Pb
Magnetodielectric effects of Y3Fe5-xTixO12+x/2 ceramics
Effects of Al Substitution on Dielectric Response and Magnetic Behavior of Yttrium Iron Garnet Ceram
Evolution from relaxor-like dielectric to ferroelectric in Ba[(Fe0.5Nb0.5)(1-x)Ti-x]O-3 solid soluti
Dielectric, Ferromagnetic Characteristics, and Room-Temperature Magnetodielectric Effects in Double
Crystal structure evolution and local symmetry of perovskite solid solution Ba[(Fe1/2Nb1/2)(1-x)Ti-x
Dielectric relaxation and polaronic hopping in the single-layered perovskite La1.5Sr0.5CoO4 ceramics
Dielectric and magnetic properties of Ba5BiNiNb9O30 ceramics
Oxygen pressure dependence of structure and electrical properties of pulsed laser deposited Ba(Fe1/2
Dielectric and Ferroelectric Characteristics of Ba(5)NdFe(1.5)Nb(8.5)O(30) Tungsten Bronze Ceramics
Structure and modified giant dielectric response in CaCu(3)(Ti(1-x)Sn(x))(4)O(12) ceramics
Microstructures and multiferroic properties of YFe1-x Mn (x) O-3 ceramics prepared by spark plasma s
Dielectric relaxation and polaronic hopping in Al-substituted Sm(1.5)Sr(0.5)NiO(4) ceramics
Dielectric relaxation and enhanced multiferroic properties in YMn0.8Fe0.2O3 ceramics prepared by in
Thermal hysteresis of ferroelectric transition in Sr4R2Ti4Nb6O30 (R=Sm and Eu) tetragonal tungsten b
Dielectric relaxation and polaronic conduction in double perovskite La2MgMnO6
Structure and dielectric characteristics of Ca(Fe1/2Ta1/2)O-3 complex perovskite ceramics
Giant dielectric constant in Nd2NiO4+delta ceramics obtained by spark plasma sintering
Structure, magnetic and dielectric properties in Mn-substituted Sm1.5Sr0.5NiO4 ceramics
FDI与经济增长：基于金融市场作用机制的研究，
Unique Dependence of Magnetoelectric Voltage Coefficient on Bias Magnetic Field in Terfenol-D/Pb(Zr,
Giant dielectric response up to high frequency in Sm1.75Sr0.25NiO4 ceramics
Ferroelectric phase transition and low-temperature structure fluctuations in Ba4Nd2Ti4Nb6O30 tungste
In situ synthesis of multiferroic YMnO3 ceramics by SPS and their characterization
Effects of oxygen vacancy on ferroelectricity in Ba(Fe1/2Nb1/2)O-3 thin films grown by pulsed laser
Magnetic and Dielectric Properties of Sr(Fe1/2Ta1/2)O3 complex perovskite ceramics
Relaxor ferroelectric and magnetic properties of Ba6CoNb9O30 ceramics with tungsten bronze structure
Density functional investigations on electronic structures, magnetic ordering and ferroelectric phas
Enhanced magnetoelectric properties of Terfenol-D disk/Pb(Zr,Ti)O-3 ring multiferroic heterostructur
Giant Dielectric Response in (Sm1-xNdx)1.5Sr0.5NiO4 Ceramics: the Intrinsic and Extrinsic Effects
Improved Structure Stability and Multiferroic Characteristics in CaTiO3-Modified BiFeO3 Ceramics
Structural, Magnetic and Dielectric Properties of Ln2NiMnO6 (Ln= Nd and Sm) Ceramics
Effects of substrate temperature and ambient oxygen pressure on growth of Ba（Fe_（1/2）Nb_（1/2））O_3 thin films by pulsed laser deposition
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