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学者姓名:王晓莉

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Electronic, Elastic and Piezoelectric Properties of Two-Dimensional Group-IV Buckled Monolayers SCIE Scopus CSCD
期刊论文 | 2017 , 34 (8) | CHINESE PHYSICS LETTERS | IF: 0.847
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Electronic, elastic and piezoelectric properties of two-dimensional (2D) group-IV buckled monolayers (GeSi, SnSi and SnGe) are studied by first principle calculations. According to our calculations, SnSi and SnGe are good 2D piezoelectric materials with large piezoelectric coefficients. The values of d(11) of SnSi and SnGe are 5.04 pm/V and 5.42 pm/V, respectively, which are much larger than 2D MoS2 (3.6 pm/V) and are comparable with some frequently used bulk materials (e.g., wurtzite AlN 5.1 pm/V). Charge transfer is calculated by the Lowdin analysis and we find that the piezoelectric coefficients (d(11) and d(31)) are highly dependent on the polarizabilities of the anions and cations in group-IV monolayers.

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GB/T 7714 Shi, Jing , Gao, Yong , Wang, Xiao-Li et al. Electronic, Elastic and Piezoelectric Properties of Two-Dimensional Group-IV Buckled Monolayers [J]. | CHINESE PHYSICS LETTERS , 2017 , 34 (8) .
MLA Shi, Jing et al. "Electronic, Elastic and Piezoelectric Properties of Two-Dimensional Group-IV Buckled Monolayers" . | CHINESE PHYSICS LETTERS 34 . 8 (2017) .
APA Shi, Jing , Gao, Yong , Wang, Xiao-Li , Yun, Si-Ning . Electronic, Elastic and Piezoelectric Properties of Two-Dimensional Group-IV Buckled Monolayers . | CHINESE PHYSICS LETTERS , 2017 , 34 (8) .
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Abnormal polar nanoregion evolution in (Bi0.09Ba0.91)(Zn0.045Ti0.955)O-3 (9BZT-BT) ceramic SCIE Scopus
期刊论文 | 2017 , 254 (9) | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | IF: 1.729
WoS CC Cited Count: 2 SCOPUS Cited Count: 2
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In this work, 9BZT-BT ceramic has been studied by both experiment and theoretical ab initio molecular dynamics. In experiment, there are two sets of polar regions with different decay temperatures coexisting in the sample. With increasing temperature, one set gradually decomposes between -45 and -15 degrees C, whereas the other set keeps stable until much higher temperatures. Ab initio molecular dynamics simulations show that Bi3+-Zn2+ displacement coupling plays a crucial role at high temperatures to stabilize the micro-domains and ergodic state polar nanoregions (PNRs). This mechanism could be used to explain the complex polarization behaviors and strong relaxor phenomenon observed in experiment. (C) 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keyword :

relaxors titanates molecular dynamics simulations dielectric properties dielectric polarization

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GB/T 7714 Shi, Jing , Cui, Naiyuan , Wang, Xiaoli et al. Abnormal polar nanoregion evolution in (Bi0.09Ba0.91)(Zn0.045Ti0.955)O-3 (9BZT-BT) ceramic [J]. | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS , 2017 , 254 (9) .
MLA Shi, Jing et al. "Abnormal polar nanoregion evolution in (Bi0.09Ba0.91)(Zn0.045Ti0.955)O-3 (9BZT-BT) ceramic" . | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 254 . 9 (2017) .
APA Shi, Jing , Cui, Naiyuan , Wang, Xiaoli , Yun, Sining . Abnormal polar nanoregion evolution in (Bi0.09Ba0.91)(Zn0.045Ti0.955)O-3 (9BZT-BT) ceramic . | PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS , 2017 , 254 (9) .
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Crystal Structures and Dielectric Properties of Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 Ceramics EI SCIE Scopus
期刊论文 | 2012 , 95 (4) , 1197-1200 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | IF: 2.107
WoS CC Cited Count: 4 SCOPUS Cited Count: 4
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Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 ceramics with 0 <= x <= 0.4 were synthesized using solid-state reaction method. The crystal structure is pure zirconolite type for the compositions with 0 <= x <= 0.15, single weberite type for the compositions with 0.3 <= x <= 0.4, and mixture of zirconolite and weberite for the compositions with 0.15 < x < 0.3. The weberite ceramics with only Bi as the A-site cation are first reported. A possible correlation between the crystal structure transformation and Ti content in system of Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 with 0 <= x <= 0.4 was suggested. Dielectric constant (e), dielectric loss (tan delta) and temperature coefficient of capacitance (TCC) are similar to 85, similar to 0.001, and similar to 200 ppm/degrees C for the zirconolite solid solutions, similar to 140, 0.004, and between -120 and similar to 200 ppm/degrees C for the weberite solid solutions, respectively, at 1 MHz. Ceramics with a near zero TCC consisting of the zirconolite and weberite phases were obtained. High epsilon, low tan delta, and low sintering temperatures (similar to 950 degrees C) make the novel ceramic system of Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 potential dielectrics for applications in low-temperature co-fired ceramic and multiplayer ceramic capacitors.

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GB/T 7714 Fan, Xiaojian , Sun, Ruiting , Wang, Xiaoli . Crystal Structures and Dielectric Properties of Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 Ceramics [J]. | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2012 , 95 (4) : 1197-1200 .
MLA Fan, Xiaojian et al. "Crystal Structures and Dielectric Properties of Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 Ceramics" . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY 95 . 4 (2012) : 1197-1200 .
APA Fan, Xiaojian , Sun, Ruiting , Wang, Xiaoli . Crystal Structures and Dielectric Properties of Bi-2((Zn1/3Nb2/3)(1-x)Ti-x)(2)O-7 Ceramics . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2012 , 95 (4) , 1197-1200 .
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Measurement and Estimation of Ferroelectric Hysteresis Loops EI CPCI-S SCIE Scopus
会议论文 | 2011 , 411 , 86-92 | Joint Meeting of 12th International Meeting on Ferroelectricity/18th IEEE International Symposium on Applications of Ferroelectrics (IMF-ISAF-2009) | IF: 0.391
WoS CC Cited Count: 12 SCOPUS Cited Count: 12
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This paper describes an automated-measurement system of ferroelectric hysteresis loops, which was developed in LabView environment based on Virtual Instrument. The system provides a function obtaining nonlinear polarization current from measured current data, which is important for properly estimating ferroelectricity of a dielectric, especially for one with high electric loss. In addition, the relationship between nonlinear polarization current density and external electric field of a ferroelectric reveals more information which is helpful for researches of polar order and/or ferroelectric characteristics.

Keyword :

polarization current electric loss Ferroelectric hysteresis loop

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GB/T 7714 Wang, Le , Wang, Xiaoli , Shi, Jing . Measurement and Estimation of Ferroelectric Hysteresis Loops [C] . 2011 : 86-92 .
MLA Wang, Le et al. "Measurement and Estimation of Ferroelectric Hysteresis Loops" . (2011) : 86-92 .
APA Wang, Le , Wang, Xiaoli , Shi, Jing . Measurement and Estimation of Ferroelectric Hysteresis Loops . (2011) : 86-92 .
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Evolution of polar order in Ba(Ti1-xSnx)O-3 ceramics EI SCIE Scopus
期刊论文 | 2009 , 149 (43-44) , 1877-1880 | SOLID STATE COMMUNICATIONS | IF: 1.837
WoS CC Cited Count: 7 SCOPUS Cited Count: 6
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The ferroelectric hysteresis loops of Ba(Ti0.85Sn0.15)O-3 and Ba(Ti0.75Sn0.25)O-3 solid solution ceramics covering the temperature T-m of a dielectric permittivity peak were investigated. At temperatures similar to 100 K lower than their respective T-m, the two compositions present clear ferroelectricity. Comparing with the parent ferroelectric BaTiO3, the tiny hysteresis loop of both Ba(Ti0.85Sn0.15)O-3 and Ba(Ti0.75Sn0.25)O-3 ceramics at temperatures above T-m reveals the existence of polar order regions or microdomains. The dielectric properties of the two solid solutions are different: the former shows the character of diffuse ferroelectric phase transition, while the latter displays the feature of relaxor ferroelectrics. According to their ferroelectric properties, however, Ba(Ti0.85Sn0.15)O-3 and Ba(Ti0.75Sn0.25)O-3 compositions exhibit the diffuse transition from low-temperature ferroelectric domains to polar nanoregions during the epsilon(T) peak area. A difference between the two compositions is that the diffuse transition of the former takes place in a much narrower temperature range than that of the latter. (C) 2009 Elsevier Ltd. All rights reserved.

Keyword :

Ferroelectrics Phase transition Hysteresis loop

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GB/T 7714 Wang, Le , Wang, Xiaoli , Li, Bo . Evolution of polar order in Ba(Ti1-xSnx)O-3 ceramics [J]. | SOLID STATE COMMUNICATIONS , 2009 , 149 (43-44) : 1877-1880 .
MLA Wang, Le et al. "Evolution of polar order in Ba(Ti1-xSnx)O-3 ceramics" . | SOLID STATE COMMUNICATIONS 149 . 43-44 (2009) : 1877-1880 .
APA Wang, Le , Wang, Xiaoli , Li, Bo . Evolution of polar order in Ba(Ti1-xSnx)O-3 ceramics . | SOLID STATE COMMUNICATIONS , 2009 , 149 (43-44) , 1877-1880 .
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Dielectric and ferroelectric properties of (BixBa1-x)(Znx/2Ti1-x/2)O-3 ceramics EI SCIE Scopus
期刊论文 | 2009 , 42 (7) | JOURNAL OF PHYSICS D-APPLIED PHYSICS | IF: 2.083
WoS CC Cited Count: 13
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(BixBa1-x)(Znx/2Ti1-x/2)O-3 [xBi(Zn1/2Ti1/2)O-3-(1-x)BaTiO3, x <= 0.30] solid solution ceramics with a pure perovskite structure were synthesized by a conventional solid-state reaction method. A change in symmetry from tetragonal to cubic was observed as the mole fraction of Bi(Zn1/2Ti1/2)O-3 increased. All compositions show a dielectric anomaly over the temperature range 30-120 degrees C. In the tetragonal phase region, the temperature Tm of the maximum dielectric constant decreases with increasing Bi(Zn1/2Ti1/2)O-3 content. In the cubic phase area, the compositions show general dielectric relaxation of linear dielectrics, and T-m increases with increasing Bi(Zn1/2Ti1/2)O-3 content. The phase transition, dielectric and ferroelectric properties of (BixBa1-x)(Znx/2Ti1-x/2)O-3 ceramics are sensitive to nano-regional chemistries.

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GB/T 7714 Wang, Xiaoli , Yang, Aihong . Dielectric and ferroelectric properties of (BixBa1-x)(Znx/2Ti1-x/2)O-3 ceramics [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2009 , 42 (7) .
MLA Wang, Xiaoli et al. "Dielectric and ferroelectric properties of (BixBa1-x)(Znx/2Ti1-x/2)O-3 ceramics" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 42 . 7 (2009) .
APA Wang, Xiaoli , Yang, Aihong . Dielectric and ferroelectric properties of (BixBa1-x)(Znx/2Ti1-x/2)O-3 ceramics . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2009 , 42 (7) .
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Bi掺杂(Ba,Sr,Ca)TiO3陶瓷的结构及介电和铁电性能 CSCD PKU
期刊论文 | 2009 , (9) , 1544-1549 | 硅酸盐学报
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采用固相反应技术制备了铋掺杂(Ba1-x-Cax)0.925Bi0.05TiO3 (x=0.10,Bi-BCT)和(Ba1-xSrx/23Cax/2)0.925Bi0.05TiO3(Bi-BCST)(x=0.10,Bi-BSCT)铁电陶瓷,研究了样品的结构、介电和铁电性能.结果表明:在Bi-BCT陶瓷中存在一种弥散的老化效应,点缺陷引起的可逆畴翻转机制能够合理地解释Bi-BCT陶瓷中异常的双电滞回线,这种机制有望进一步解释Bi-BSCT陶瓷中异常的介电行为.

Keyword :

介电性能 老化 陶瓷 缺陷 铁电性能

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GB/T 7714 云斯宁 , 王晓莉 , 朱建辉 et al. Bi掺杂(Ba,Sr,Ca)TiO3陶瓷的结构及介电和铁电性能 [J]. | 硅酸盐学报 , 2009 , (9) : 1544-1549 .
MLA 云斯宁 et al. "Bi掺杂(Ba,Sr,Ca)TiO3陶瓷的结构及介电和铁电性能" . | 硅酸盐学报 9 (2009) : 1544-1549 .
APA 云斯宁 , 王晓莉 , 朱建辉 , 石鲸 , 徐德龙 . Bi掺杂(Ba,Sr,Ca)TiO3陶瓷的结构及介电和铁电性能 . | 硅酸盐学报 , 2009 , (9) , 1544-1549 .
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(Ba1-xCax)1-1.5yBiyTiO3陶瓷的介电弛豫行为和线性介电响应 CSCD PKU
期刊论文 | 2008 , (3) , 271-276 | 硅酸盐学报
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采用传统的电子陶瓷工艺制备了(Ba1-xCax)1-1.5yBiyTiO3(x=0.10,0.20,0.30,0.40,0.50;y=0.05)陶瓷,研究了介电弛豫行为和线性介电响应.X射线衍射分析表明:摩尔分数为5%的Bi3+能够完全溶入Ba1-xCaxTiO3固溶体的钙钛矿晶格.与Ba1-xCaTiO3陶瓷相比,(Ba1-xCax)1-1.5yBiyTiO3陶瓷表现出与铅基弛豫铁电体相似的介电弛豫行为.在(Ba1-xCax)1-1.5yBiyTiO3陶瓷样品中,发现了罕有的不同于正常铁电体和弛豫体的线性介电响应:在电场强度(E)接近于零的地方,极化强度(P)-E回线近似于线性变化,电流密度(J)-E回线呈现明显的双峰,电滞回线总体呈现"束腰"效应.(Ba1-xCax)1-1.5yBiyTiO3陶瓷样品表现出的这种异常介电行为归因于缺陷偶极距所产生电场的遏制作用.

Keyword :

钛酸钙钡 掺杂 缺陷 介电弛豫 线性介电响应

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GB/T 7714 云斯宁 , 王晓莉 , 徐德龙 et al. (Ba1-xCax)1-1.5yBiyTiO3陶瓷的介电弛豫行为和线性介电响应 [J]. | 硅酸盐学报 , 2008 , (3) : 271-276 .
MLA 云斯宁 et al. "(Ba1-xCax)1-1.5yBiyTiO3陶瓷的介电弛豫行为和线性介电响应" . | 硅酸盐学报 3 (2008) : 271-276 .
APA 云斯宁 , 王晓莉 , 徐德龙 , 李辉 , 罗平生 , 孙晓量 et al. (Ba1-xCax)1-1.5yBiyTiO3陶瓷的介电弛豫行为和线性介电响应 . | 硅酸盐学报 , 2008 , (3) , 271-276 .
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改进的工艺路线制备化学计量比的PZN基钙钛矿陶瓷 CSCD PKU
期刊论文 | 2006 , (z2) , 267-271 | 稀有金属材料与工程 | IF: 0.251
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采用改进的工艺路线制备了化学计量比的Pb(Zn1/3Nb2/3)O3-PbTiO3-BaTiO3陶瓷,二氧化钛和碳酸钡不经过预烧,与预反应粉体混合球磨,成型后直接烧结,在1100℃和1120℃分别保温1 h,2 h,4 h获得了100%钙钛矿结构的PZN-PT-BT陶瓷,最大密度7.418 g/cm3,最大介电常数7672.

Keyword :

改进的工艺 介电性能 预烧 PZN-PT-BT陶瓷

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GB/T 7714 云斯宁 , 王晓莉 . 改进的工艺路线制备化学计量比的PZN基钙钛矿陶瓷 [J]. | 稀有金属材料与工程 , 2006 , (z2) : 267-271 .
MLA 云斯宁 et al. "改进的工艺路线制备化学计量比的PZN基钙钛矿陶瓷" . | 稀有金属材料与工程 z2 (2006) : 267-271 .
APA 云斯宁 , 王晓莉 . 改进的工艺路线制备化学计量比的PZN基钙钛矿陶瓷 . | 稀有金属材料与工程 , 2006 , (z2) , 267-271 .
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(Ba1-xSrx/2Cax/2)TiO3陶瓷的介电弛豫特征和铁电性能 CSCD PKU
期刊论文 | 2006 , (2) , 142-146 | 硅酸盐学报
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采用传统陶瓷的制备方法,制备了(Ba1-xSrx/2Cax/2)TiO3(x=0.10,0.20,0.40,0.50,0.60)铁电陶瓷.X射线衍射分析表明:x=0.20时,陶瓷样品具有三方、四方共存的晶体结构.不同频率下陶瓷样品的介电温谱显示(Ba1-xSrx/2Cax/2)TiO3材料具有弥散相变的特征,在x=0.60时,(Ba1-xSrx/2Cax/2)TiO3陶瓷具有典型的弛豫铁电体特征.研究发现:当x=0.20时,(Ba1-xSrx/2·Cax/2)TiO3陶瓷材料的矫顽电场达到极小值.基于极性纳米微区理论的观点,进一步研究了弛豫铁电体和具有弥散相变铁电体两者之间的关系,结果表明:仅仅当实验频率和极性纳米微区的弛豫频率相近时,在弥散相变温区内介电弛豫行为才能被观察到.

Keyword :

弥散相变 介电弛豫 钛酸钙锶钡 铁电性能

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GB/T 7714 云斯宁 , 王晓莉 . (Ba1-xSrx/2Cax/2)TiO3陶瓷的介电弛豫特征和铁电性能 [J]. | 硅酸盐学报 , 2006 , (2) : 142-146 .
MLA 云斯宁 et al. "(Ba1-xSrx/2Cax/2)TiO3陶瓷的介电弛豫特征和铁电性能" . | 硅酸盐学报 2 (2006) : 142-146 .
APA 云斯宁 , 王晓莉 . (Ba1-xSrx/2Cax/2)TiO3陶瓷的介电弛豫特征和铁电性能 . | 硅酸盐学报 , 2006 , (2) , 142-146 .
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