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High-frequency wide beam underwater transducer based on 1–3 piezocomposite 基于1-3压电复合材料的高频宽波束水下传感器
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971009
Chao Zhong, Junan Xu, Shaohua Hao, Yanjun Zhang, Likun Wang, L. Qin
{"title":"High-frequency wide beam underwater transducer based on 1–3 piezocomposite","authors":"Chao Zhong, Junan Xu, Shaohua Hao, Yanjun Zhang, Likun Wang, L. Qin","doi":"10.1080/07315171.2021.1971009","DOIUrl":"https://doi.org/10.1080/07315171.2021.1971009","url":null,"abstract":"Abstract In order to increase the beam width of high-frequency underwater transducer, ellipsoidal cap and spherical cap transducer based on 1–3 piezocomposite were designed and fabricated. Finite element simulation was used to analyze transmitting voltage response level and beam directivity curve of the transducer. The transducer was fabricated by the curved 1–3 piezoelectric composite. Compared with spherical cap transducer, the elliptical spherical cap transducer has the advantage of wide beam opening angle and relatively smooth directivity curve. Both simulation and experiment results showed the potential of a broad covered area of the composite transducer in underwater environment.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"51 1","pages":"93 - 103"},"PeriodicalIF":0.4,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74740496","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
Optimized testing of package for stacked piezoelectric energy harvester in roadway applications 道路应用中堆叠式压电能量采集器封装优化测试
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971010
Peng Wang, Run Cheng, G. Ding, Jun Wang, Zhiming Liu, Haotong Zhang
{"title":"Optimized testing of package for stacked piezoelectric energy harvester in roadway applications","authors":"Peng Wang, Run Cheng, G. Ding, Jun Wang, Zhiming Liu, Haotong Zhang","doi":"10.1080/07315171.2021.1971010","DOIUrl":"https://doi.org/10.1080/07315171.2021.1971010","url":null,"abstract":"Abstract Piezoelectric energy harvester (PEH) applied in collection and conversion of mechanical energy on roadway has attracted widely attentions in recent years. This study aims to improve a new type of road-compatible stacked PEH (sPEH), which consists of six PZT stacked piezoelectric transducers connected in parallel and a matched package to better the output efficiency and working life of sPEH. Uniaxial compression tests are conducted to measure the output power, voltage and current of the sPEH. The package of the sPEH is optimized depending on the sensitivity of the output to loading amplitude, frequency, package material and cover thicknesses. Tests results show that the output of the sPEH increases as increasing load amplitude and frequency. The sPEH with a package being polyethylene and 3 mm thick exhibited up to maximum output of 21.97 mA power and 8.59 W/m2 power density which successfully charges a lithium battery in 24 h. Finally, the protection of package against the erosion of environment and crushing of traffic load in road application was verified by immersion and compression test.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"63 1","pages":"104 - 116"},"PeriodicalIF":0.4,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80326275","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
Monte Carlo simulation for predicting neutron-induced single-event upset in ferroelectric random access memory 预测铁电随机存取存储器中中子引起的单事件扰动的蒙特卡罗模拟
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971011
Hong Zhang, Jing Huang, H. Guo, Z. Lei, B. Li
{"title":"Monte Carlo simulation for predicting neutron-induced single-event upset in ferroelectric random access memory","authors":"Hong Zhang, Jing Huang, H. Guo, Z. Lei, B. Li","doi":"10.1080/07315171.2021.1971011","DOIUrl":"https://doi.org/10.1080/07315171.2021.1971011","url":null,"abstract":"Abstract The influence of the single event effects (SEE) induced by neutron up to 14 MeV on ferroelectric random access memory (FRAM) is simulated by the Monte Carlo method. Simulation results show that single-event upset (SEU) occurs in FRAM when the neutron energy is greater than 6 MeV, and the average energy deposition of neutrons in the sensitive volume increases with increasing neutron energy. Neutron SEU in FRAM occurs when the energy deposition of a single secondary particles generated by a nuclear reaction in the sensitive region exceeds the critical energy. The neutron SEU cross-section of FRAM increases exponentially with increasing energy in the range of 6–14 MeV, and the SEU cross-section is about 1.39 × 10−14 cm2 at 14 MeV. These findings are due to concomitant increases in the variety and numbers of secondary particles whose energy deposition in the sensitive region exceeds the critical energy.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"63 1","pages":"117 - 127"},"PeriodicalIF":0.4,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90390562","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
Investigation on microscopic mechanisms of high-Curie temperature PMN-PH-PT piezoelectric ceramics 高居里温度PMN-PH-PT压电陶瓷微观机理研究
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971008
Rongfeng Zhu, B. Fang, Xiang-juan Zhao, Shuai Zhang, Xiaolong Lu, Jianning Ding
{"title":"Investigation on microscopic mechanisms of high-Curie temperature PMN-PH-PT piezoelectric ceramics","authors":"Rongfeng Zhu, B. Fang, Xiang-juan Zhao, Shuai Zhang, Xiaolong Lu, Jianning Ding","doi":"10.1080/07315171.2021.1971008","DOIUrl":"https://doi.org/10.1080/07315171.2021.1971008","url":null,"abstract":"Abstract High-Curie temperature (TC) piezoelectric ceramics 0.15Pb(Mg1/3Nb2/3)O3-0.38PbHfO3-0.47PbTiO3 (0.15PMN-0.38PH-0.47PT) were fabricated via the citrate method, which shows pure perovskite structure. The ceramics have composition locating at the rhombohedral side around the morphotropic phase boundary (MPB), and present enhanced electrical properties as compared with those prepared by the solid-state reaction method via the columbite precursor technique. Temperature-dependent Raman spectroscopy not only proves the occurrence of the ferroelectric to paraelectric phase transition around TC, but also detects the successive phase symmetry transitions, which correlate with the polar nanoregions (PNRs) or the coexistence of multiple ferroelectric phases. Large quantities of fine stripe nanoscale ferroelectric domains are observed by piezoresponse force microscopy (PFM) in the 0.15PMN-0.38PH-0.47PT ceramics, which form the larger micron island domains. Temperature-dependent Raman spectra and PFM results indicate that the excellent dielectric, ferroelectric and piezoelectric properties of the 0.15PMN-0.38PH-0.47PT ceramics can be attributed to either the existence of the PNRs with low symmetry or the multiple-ferroelectric-phases coexistence around room temperature and the fine stripe ferroelectric domains.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"35 1","pages":"83 - 92"},"PeriodicalIF":0.4,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77408187","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
Exchange bias and vertical shift of the magnetic hysteresis loop in Co/BiFeO3 bilayers Co/BiFeO3双层中磁滞回线的交换偏置和垂直位移
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI: 10.1080/07315171.2021.1971006
Liyan Wang, Changzheng Wang
{"title":"Exchange bias and vertical shift of the magnetic hysteresis loop in Co/BiFeO3 bilayers","authors":"Liyan Wang, Changzheng Wang","doi":"10.1080/07315171.2021.1971006","DOIUrl":"https://doi.org/10.1080/07315171.2021.1971006","url":null,"abstract":"Abstract To reveal the mechanism of interfacial exchange coupling, the magnetic hysteresis (M-H) loop of Co/BiFeO3 bilayers deposited on (001) LaAlO3 (LAO) substrates by magnetron sputtering was measured. The M-H loop displays a horizontal shift along the field axis coexisting with a vertical shift along the magnetization axis. The frozen uncompensated interfacial spins result in the EB effect, as demonstrated by the similar dependencies between EB and the vertical shift in temperature and BFO thickness. In addition, the M-H loop also shows an enhancement in magnetization, which is considered to result from the induced net moments at the interface.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"74 1","pages":"65 - 71"},"PeriodicalIF":0.4,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85783596","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
Critical magnetic behavior of the half Heusler alloy RhCrSi: Monte Carlo study 半Heusler合金RhCrSi的临界磁性行为:蒙特卡罗研究
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-08-11 DOI: 10.1080/07315171.2022.2076468
S. Idrissi, S. Ziti, H. Labrim, L. Bahmad
{"title":"Critical magnetic behavior of the half Heusler alloy RhCrSi: Monte Carlo study","authors":"S. Idrissi, S. Ziti, H. Labrim, L. Bahmad","doi":"10.1080/07315171.2022.2076468","DOIUrl":"https://doi.org/10.1080/07315171.2022.2076468","url":null,"abstract":"Abstract In this paper, we study the critical magnetic properties of the Half Heusler alloy RhCrSi, using Monte Carlo simulations (MCS) under the Metropolis algorithm. In fact, to study this alloy, we apply an Ising model using the MCS simulations, we concentrate only on the magnetic atoms: Rh and Cr. For this purpose, these magnetic atoms are modeled by the spin moments S = 5/2 for Rh atoms and σ = 2 for Cr atoms, respectively. In addition, we discuss the ground state phase diagrams in different planes corresponding to different physical parameters. On the other hand, for non-null temperature values, we perform the Monte Carlo simulations (MCS) to study the critical behavior of the compound RhCrSi, in the Ising approximation. Indeed, we present a detailed discussion of the obtained results for the magnetizations as a function of the temperature, the crystal field and the exchange coupling interactions. Additionally, we give the reliance of the basic temperature as an element of precious crystal field when fixing the exchange coupling interactions. To finish this work, we built up and examined the magnetic hysteresis cycles and the relating coercive fields as a part of the external magnetic field.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"22 1","pages":"6 - 21"},"PeriodicalIF":0.4,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72708715","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
Effect of alternative mechanochemical method on modified bismuth titanate 机械化学替代法对改性钛酸铋的影响
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-06-01 DOI: 10.1080/07315171.2021.1923118
Nagbasavanna Sharanappa, A. Bidve
{"title":"Effect of alternative mechanochemical method on modified bismuth titanate","authors":"Nagbasavanna Sharanappa, A. Bidve","doi":"10.1080/07315171.2021.1923118","DOIUrl":"https://doi.org/10.1080/07315171.2021.1923118","url":null,"abstract":"Abstract Bi4 – x La x Ti3O12 (BiLT, x = 0.60–1.00) ceramics have been successfully synthesized by the alternative mechanochemical method and investigated their structural, microstructure, dielectric, and ferroelectric properties. Based on thermal stability of synthesized samples, compounds were calcined at 750 °C. No secondary phase is observed in the powder X-ray diffraction patterns. Plate-like shape with enhanced density is seen in the scanning electron microscope micrographs. EDAX pattern confirmed the chemical composition of samples. Prepared ceramic sample had relatively appreciable remanent polarization value (≈14.5 µC/cm2) at room temperature. Microstructure significantly influenced the dielectric and ferroelectric properties of the modified BiT ceramics. Synthesized compounds explored desirable electronic properties for innovative ferroelectric-based device applications.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"22 1","pages":"31 - 39"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76510978","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
On the Capacitance of Piezoelectric Metal–Insulator–Semiconductor Junctions 压电金属-绝缘体-半导体结的电容研究
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-04-30 DOI: 10.1080/07315171.2021.1923115
Lei Yang, Jianke Du, Ji Wang, Jia-shi Yang
{"title":"On the Capacitance of Piezoelectric Metal–Insulator–Semiconductor Junctions","authors":"Lei Yang, Jianke Du, Ji Wang, Jia-shi Yang","doi":"10.1080/07315171.2021.1923115","DOIUrl":"https://doi.org/10.1080/07315171.2021.1923115","url":null,"abstract":"Abstract We study the capacitance of piezoelectric metal–insulator–semiconductor junctions. The linearized macroscopic theories of piezoelectric dielectrics and semiconductors are used. An analytical solution is obtained with an explicit expression for the junction capacitance. The contribution from the semiconductor part is characterized by the Debye length. When the semiconductor part is long compared to the Debye length, the junction capacitance can be written as a serial connection of two capacitors of the insulator and semiconductor parts. Because of piezoelectric coupling, a charge-stress coefficient is introduced to describe the junction behavior completely.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"12 1","pages":"1 - 12"},"PeriodicalIF":0.4,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76234572","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
Low temperature investigation on dielectric properties of carbon doped copper oxide 掺杂碳氧化铜介电性能的低温研究
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-04-30 DOI: 10.1080/07315171.2021.1923120
Hema Chandra Rao Bitra, A. Rao, K. S. Babu, G. N. Rao
{"title":"Low temperature investigation on dielectric properties of carbon doped copper oxide","authors":"Hema Chandra Rao Bitra, A. Rao, K. S. Babu, G. N. Rao","doi":"10.1080/07315171.2021.1923120","DOIUrl":"https://doi.org/10.1080/07315171.2021.1923120","url":null,"abstract":"Abstract Carbon-doped copper oxide (CuO)1 -x C x (x = 0, 0.05 and 0.1) samples were synthesized by solid state reaction method, and sintered at 850 °C for 12 h. An X-ray diffraction (XRD) result shows that the structure of the samples was monoclinic. Dielectric studies were carried for these samples in the temperature range 80 K − 300 K between the frequency range 20 Hz − 1 MHz via impedance analyzer. The permittivity and tangent loss values of the doped samples increase with increasing doping concentration. In AC conductivity study, the conductivity mechanism of the 0% and 10% carbon doped samples follows correlated barrier hopping (CBH) model and 5% carbon doped sample follows quantum mechanical tunnelling (QMT) model. The temperature-dependent conductivity curve seems to obey the Arrhenius behavior. The activation energy values have been calculated from the frequency-dependent conductivity curves. The cole–cole plot shows the formation of grain and grain boundary in the samples.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"32 1","pages":"46 - 55"},"PeriodicalIF":0.4,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83144629","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
Influence of moisture on ferroelectric–paraelectric phase transition of a composite containing oxidized MWCNT and TGS 水分对氧化MWCNT和TGS复合材料铁电-准电相变的影响
IF 0.4 4区 物理与天体物理
Ferroelectrics Letters Section Pub Date : 2021-04-30 DOI: 10.1080/07315171.2021.1923116
H. Nguyen, Phan Thi Hong Thao
{"title":"Influence of moisture on ferroelectric–paraelectric phase transition of a composite containing oxidized MWCNT and TGS","authors":"H. Nguyen, Phan Thi Hong Thao","doi":"10.1080/07315171.2021.1923116","DOIUrl":"https://doi.org/10.1080/07315171.2021.1923116","url":null,"abstract":"Abstract This work reports experimental results for investigating the effects of residual water on phase transition in triglycine sulfate (TGS) filled with 5 wt% of oxidized multiwalled carbon nanotubes (OMWCNTs) under a relative humidity of 90% for different storage time. A similar composite containing TGS and non-oxidized MWCNT was also synthesized for comparison. According to measured data, the moisture was well adsorbed into OMWCNT/TGS composite and resulted in the shift of phase transition point toward higher temperatures for samples stored for less than 5 days. The longer storage caused a significant drop of dielectric constant at phase transition.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":"24 1","pages":"13 - 19"},"PeriodicalIF":0.4,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82383612","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
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