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Altering the distribution of Pd nano particles on ferroelectric substrate: Dissipative particle dynamics simulation 改变铁电衬底上钯纳米粒子的分布:耗散粒子动力学模拟
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-11-02 DOI: 10.1080/07315171.2018.1537334
Yue Liu, Jiaxi Tang, Chengzhi Hua, Jiuyang Li, K. Fu, Haonan Zhu
{"title":"Altering the distribution of Pd nano particles on ferroelectric substrate: Dissipative particle dynamics simulation","authors":"Yue Liu, Jiaxi Tang, Chengzhi Hua, Jiuyang Li, K. Fu, Haonan Zhu","doi":"10.1080/07315171.2018.1537334","DOIUrl":"https://doi.org/10.1080/07315171.2018.1537334","url":null,"abstract":"Abstract Pd nano particles have been widely used as catalyst in chemical industry. However, the catalytic efficiency has been limited by the Aggregation of the Pd. In this paper, the surface aggregation dynamics of Pd on different ferroelectric polarization surface and temperature were reported. Meanwhile, reducing the particle size to obtain the dispersed morphology of Pd was discussed by the dissipative particle dynamics method and density functional theory. The negatively poled surface offered dispersed Pd morphology, the temperature influence will be discussed in the simulation.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82688658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Pyroelectric performance of (Ba0.825+xCa0.175-x)(Ti1-xSnx)O3 lead free ceramics (Ba0.825+xCa0.175-x)(Ti1-xSnx)O3无铅陶瓷的热释电性能
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-11-02 DOI: 10.1080/07315171.2018.1537336
Moolchand Sharma, S. Singh, Bhim Singh
{"title":"Pyroelectric performance of (Ba0.825+xCa0.175-x)(Ti1-xSnx)O3 lead free ceramics","authors":"Moolchand Sharma, S. Singh, Bhim Singh","doi":"10.1080/07315171.2018.1537336","DOIUrl":"https://doi.org/10.1080/07315171.2018.1537336","url":null,"abstract":"Abstract The pyroelectric properties of (Ba0.825+xCa0.175-x)(Ti1-xSnx)O3 ceramics with x = 0.0625, 0.0875 and 0.100 were investigated. Samples were fabricated using solid state reaction route and were exposed to IR lamp periodically to recorded open circuit voltage. Peak value of open circuit voltage was 0.8 V, 0.70 V and 0.53 V for x = 0.0625, 0.0875 and 0.1 samples, respectively. P–E loops were recorded for all the compositions under study. Further pyroelectric coefficient was estimated using P–E loops data. The values of pyroelectric coefficient estimated as 5.70 × 10−4C/m2 K, 5.5 × 10−4C/m2 K and 5 × 10−4C/m2 K for x = 0.0625,0.0875 and 0.1 samples.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87686146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Switching related activation field for polarization-reversal and for polarization-saturation in NaNO2-PVA thin composite films NaNO2-PVA复合薄膜中极化反转和极化饱和的开关相关激活场
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-11-02 DOI: 10.1080/07315171.2018.1564874
Lakhbir Singh, Baljinder Kaur, T. Garg, N. Dabra, J. Hundal
{"title":"Switching related activation field for polarization-reversal and for polarization-saturation in NaNO2-PVA thin composite films","authors":"Lakhbir Singh, Baljinder Kaur, T. Garg, N. Dabra, J. Hundal","doi":"10.1080/07315171.2018.1564874","DOIUrl":"https://doi.org/10.1080/07315171.2018.1564874","url":null,"abstract":"Abstract The remanant polarization in ferroelectric materials appear due to some lattice hindrances which do not allow the domains and their constituting unit cells to relax back to their previous orientations at zero value of sweeping field. This tendency appears in the form of capacitance due to shaking-up of the positive and negative charge centers of the structural unit cells in every domain leading to movement of charges throughout the system. It is this kind of movement and not the permanent dipole moment of the charges in the ferroelectric sample which becomes the cause of capacitance and hence helps the system to store energy from the applied electric field over there; the stored energy in the ferroelectric sample can be stripped off with the application of some minimum reverse field called activation field for polarization reversal. Landauer modeled average polarization current over the switching time and related rate of polarization switching with some minimum applied field below which polarization switching shall be too slow to attain saturation stage of polarization during the life time of the experiment designed for the purpose and accordingly the sample, in spite of being ferroelectric, shall not translate to ferroelectric hysteresis loop. In this paper ferroelectric switching analysis of equal wt% NaNO2-PVA composite fabricated at elevated temperature is carried.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77940726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Exothermic effect of entropy change in second-order phase transition ferroelectrics 二阶相变铁电体中熵变的放热效应
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-11-02 DOI: 10.1080/07315171.2018.1537335
S. Qu, Ming Mei, W. Cao, R. K. Pan, Y. Qi, Lei Zhang, Xunzhong Shang
{"title":"Exothermic effect of entropy change in second-order phase transition ferroelectrics","authors":"S. Qu, Ming Mei, W. Cao, R. K. Pan, Y. Qi, Lei Zhang, Xunzhong Shang","doi":"10.1080/07315171.2018.1537335","DOIUrl":"https://doi.org/10.1080/07315171.2018.1537335","url":null,"abstract":"Abstract Exothermic effect of entropy change by dipole orintation upon E in T-C second order phase transition ferroelectrics is modeled with statistic method. Formula of entropy change and temperature change were derived, showing sharp drop of entropy in higher temperature for higher E, exothermic peak shifts to high temperature with E, and 180° turning of dipole with a critical electric field prevails entropy change in ferroelectric phase, while 180° turning dominates entropy change in paraelectric phase. The results of numerical simulation can explain regulation of heating effect of the ferroelectrics. Morphotropic phase boundary will possess giant exothermic effect in principle.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79789923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Effects of Li and Cu dopants on the crystal structure of Ba0.65Sr0.35TiO3 thin films Li和Cu掺杂剂对Ba0.65Sr0.35TiO3薄膜晶体结构的影响
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-11-02 DOI: 10.1080/07315171.2018.1537333
Irzaman, M. Dahrul, B. Yuliarto, K. Hammam, H. Alatas
{"title":"Effects of Li and Cu dopants on the crystal structure of Ba0.65Sr0.35TiO3 thin films","authors":"Irzaman, M. Dahrul, B. Yuliarto, K. Hammam, H. Alatas","doi":"10.1080/07315171.2018.1537333","DOIUrl":"https://doi.org/10.1080/07315171.2018.1537333","url":null,"abstract":"Abstract A barium strontium titanate Ba0.65Sr0.35TiO3 and its lithium (Li) and copper (Cu) doped thin films have fabricated on quartz substrates based on sol-gel and spin-coating method. Chemical solution deposition with spin-coating technique deposited the thin films. The addition of Li and Cu dopants lead to the change of lattice constant and the change of grain size. From Scherrer’s equation, it found that BLST and BCST thin films have larger and smaller grain size than that of BST, respectively. It also revealed that the crystal structures formed in a phase between cubic and tetragonal structure. Scanning electron microscopy was confirmed homogenous surfaces of thin film and energy dispersive x-ray was showed chemical composition according to the considered stoichiometry.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89249992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Rietveld refinement and multiferroic properties of Gd and Ti co-doped BiFeO3 Gd和Ti共掺BiFeO3的Rietveld细化和多铁性
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-08-31 DOI: 10.1080/07315171.2018.1499357
Fei Xue, Yahui Tian, Lu Tang, Pengwei Guo, Zhe Luo, Wang Li
{"title":"Rietveld refinement and multiferroic properties of Gd and Ti co-doped BiFeO3","authors":"Fei Xue, Yahui Tian, Lu Tang, Pengwei Guo, Zhe Luo, Wang Li","doi":"10.1080/07315171.2018.1499357","DOIUrl":"https://doi.org/10.1080/07315171.2018.1499357","url":null,"abstract":"Abstract Bi0.8Gd0.2Fe0.95Ti0.05O3 (BGFT) multiferroic ceramics were prepared by a solid-state reaction, and their sintering, microstructure, dielectric and magnetic properties were studied. Experimental results show that BGFT ceramics sintered at 980 °C possess a pure orthorhombic (space group, Pnma) structure, and these ceramics possess high relative theoretical density (∼95%), low leakage current density (10−6 A/cm2). The magnetic and electric measurements show the coexistence of ferroelectric and weak ferromagnetic in BGFT ceramics. The results of the Rietveld refinement for BGFT ceramics reveal the existence of bismuth and oxygen vacancies, and these vacancies have an important influence on the electric and magnetic properties.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80316290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Piezoelectric sensitivity and electromechanical coupling in a novel corundum-containing 3–0-type composite 新型含刚玉3 - 0型复合材料的压电灵敏度与机电耦合
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-08-31 DOI: 10.1080/07315171.2018.1499360
P. A. Borzov, S. Filippov, V. Topolov, O. E. Brill, A. Panich
{"title":"Piezoelectric sensitivity and electromechanical coupling in a novel corundum-containing 3–0-type composite","authors":"P. A. Borzov, S. Filippov, V. Topolov, O. E. Brill, A. Panich","doi":"10.1080/07315171.2018.1499360","DOIUrl":"https://doi.org/10.1080/07315171.2018.1499360","url":null,"abstract":"Abstract A novel 3–0-type composite, that contains ferroelectric (PZT-type) and corundum ceramics, is studied to show features of the piezoelectric response and anisotropy of electromechanical coupling factors. The corundum ceramic is applied as a component with a large elastic stiffness. Almost equal volume fractions of corundum mc and air pores mp are detected at 0.05 < mc < 0.18, and this has no analogies among the studied piezo-active 3–0-type composites. Experimental results on the piezoelectric coefficients , thickness electromechanical coupling factor , planar electromechanical coupling factor , and anisotropy (and ) are interpreted in terms of a model that takes into account features of the composite microgeometry and an interaction between the 3–0 ferroelectric ceramic/corundum and 3–0 ferroelectric ceramic/air regions. The studied 3–0-type composite can be of interest as an active element of piezoelectric transducers, sensors, and other piezotechnical devices.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86418707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Dual friction-drive SAW motor utilizing cylindrical shaft as external load driver 采用圆柱轴作为外部负载驱动器的双摩擦驱动SAW电机
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-08-31 DOI: 10.1080/07315171.2018.1499359
Basudeba Behera, Hashal B. Nemade
{"title":"Dual friction-drive SAW motor utilizing cylindrical shaft as external load driver","authors":"Basudeba Behera, Hashal B. Nemade","doi":"10.1080/07315171.2018.1499359","DOIUrl":"https://doi.org/10.1080/07315171.2018.1499359","url":null,"abstract":"Abstract This work presents an ingenious mechanism using dual frictional-drive (DFD) for surface acoustic wave (SAW) linear motor resulting in significantly compact and lightweight design. The device uses two synchronous Rayleigh waves propagating on two 128° rotated y-cut x-propagated lithium niobate (LiNbO3) piezoelectric stators facing each other and driving a cylindrical slider held tightly between the stators in translational motion. By reversing the direction of propagation of both the SAWs, the direction of motion of the slider can be reversed. The experimental results of the proposed SAW motor demonstrate the novel mechanism to form the device where the slider is attaining a steady state velocity of 1.28 m/s for a continuous wave excitation of frequency 13.5 MHz.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72827322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Excellent piezoelectric properties and high Tc in Fe2O3-doped PMW-PNN-PZT ceramics fe2o3掺杂PMW-PNN-PZT陶瓷具有优异的压电性能和高Tc
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-08-31 DOI: 10.1080/07315171.2018.1499358
Juhyun Yoo
{"title":"Excellent piezoelectric properties and high Tc in Fe2O3-doped PMW-PNN-PZT ceramics","authors":"Juhyun Yoo","doi":"10.1080/07315171.2018.1499358","DOIUrl":"https://doi.org/10.1080/07315171.2018.1499358","url":null,"abstract":"Abstract In this work, in order to develop piezoelectric ceramics sintered at low temperature with high piezoelectric d31 coefficient, Pb(Mg1/2W1/2)0.03(Ni1/3Nb2/3)0.09(Zr0.5Ti0.5)0.88O3 ceramics were fabricated as a function of the amount of Fe2O3 addition using a conventional mixed oxide method. The microstructure, dielectric and piezoelectric properties were systematically investigated as a function of amount of Fe2O3 addition. At the sintering temperature of 920 °C, the excellent values of density = 7.94 (g/cm3), piezoelectric coefficient (d31) = 246 pC/N, planar electromechanical coupling coefficient (kp) = 0.69, mechanical quality factor (Qm) = 213, dielectric constant (εr) = 2,682 and high Curie temperature =366 °C were obtained from the ceramics doped with 0.3 wt% Fe2O3, respectively.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85783241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Optical properties and crystal structure of lithium doped Ba0.55Sr0.45TiO3 (BLST) thin films 掺锂Ba0.55Sr0.45TiO3 (BLST)薄膜的光学性质和晶体结构
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2018-08-31 DOI: 10.1080/07315171.2018.1499361
Irzaman, A. Nuraisah, Aminullah, K. A. Hamam, H. Alatas
{"title":"Optical properties and crystal structure of lithium doped Ba0.55Sr0.45TiO3 (BLST) thin films","authors":"Irzaman, A. Nuraisah, Aminullah, K. A. Hamam, H. Alatas","doi":"10.1080/07315171.2018.1499361","DOIUrl":"https://doi.org/10.1080/07315171.2018.1499361","url":null,"abstract":"Abstract Lithium (0, 1, 3, 5%) doped Ba0.55Sr0.45TiO3 (BLST) thin films have been successfully manufactured by growing Li2O-doped Ba0.55Sr0.45TiO3 on the surface of p-type Si (111) substrate. Concentration of 1 M with annealing temperature of 850 °C for 15 hours was used in BST and BLST films. The Li dopant addition induced smaller lattice paramater, film thickness, gap energy, and greater refractive index. These results were supported by imaging surface morphology which Li+ ion can replace Sr2+ ion in the structure due to its small radius. Characterization of BST and BLST films structural showed they have cubic structure.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80033454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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