Ferroelectrics Letters Section最新文献_第2页

Effect of a Metallic Implant on the Hysteresis of Ferroelectric BaTiO ₃ Ceramics 金属植入物对铁电batio3陶瓷迟滞性能的影响

4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-10-05 DOI: 10.1080/07315171.2023.2238176

Nataly Asul García-Morales, Jose de Jesus Agustin Flores-Cuautle, Carlos Omar González Moran, Daniel Hernández Rivera, Ernesto Suaste-Gómez

引用次数: 0

Study of the Lattice Thermal Conductivity of Janus In ₂ Ge ₂ S ₆ and In ₂ Ge ₂ S ₃ Se ₃ Bilayers Janus in2ge2s6和in2ge2s3s3双分子层晶格导热性的研究

4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-10-05 DOI: 10.1080/07315171.2023.2238178

Wei Ding, Yuhang Wang, Yifeng Tao

{"title":"Study of the Lattice Thermal Conductivity of Janus In 2 Ge 2 S 6 and In 2 Ge 2 S 3 Se 3 Bilayers","authors":"Wei Ding, Yuhang Wang, Yifeng Tao","doi":"10.1080/07315171.2023.2238178","DOIUrl":"https://doi.org/10.1080/07315171.2023.2238178","url":null,"abstract":"AbstractIn this paper, we investigate the lattice thermal conductivity of Janus In2Ge2S6 and In2Ge2S3Se3 bilayers by solving the phonon Boltzmann transport equation using first-principles calculations. We found that this is mainly due to the fact that the frequencies at which larger gaps appear in the intermediate and high frequency optical branches of In2Ge2S3Se3 are smaller than those of In2Ge2S6, which shifts the phonon dispersion curve of In2Ge2S3Se3 downward, which makes the overall phonon group velocity of In2Ge2S3Se3 material smaller than that of In2Ge2Se6 material, and also due to the fact that In2Ge2S3Se3 soft bending in the finite layer thickness coupling and the tight connection of the in-plane acoustic modes, resulting in increased phonon-phonon scattering processes, shorter phonon relaxation times, and larger Grüneisen parameters indicating a stronger anharmonic In2Ge2S3Se3 structure, all these factors combined lead to a lattice thermal conductivity of In2Ge2S3Se3 smaller than the lattice thermal conductivity of In2Ge2S6. At a temperature of 1000 K, the In2Ge2S3Se3 structure has a minimum lattice thermal conductivity of about 0.22 W/mK, and In2Ge2S6 has a minimum lattice thermal conductivity of about 0.4 W/mK. Our results suggest that Janus In2Ge2S6 and In2Ge2S3Se3 bilayers are potential for future thermal management of nanoelectronic devices and thermoelectric devices. two-dimensional materials.Keywords: Two-dimensional materialsFirst-principles calculationsLattice thermal conductivity Disclosure StatementNo potential conflict of interest was reported by the author(s).","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135482623","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

Optimization of MPB for Sn Substituted Lead Bismuth Zirconate Titanate Thin Films by the Electromechanical Behavior Related to Energy Storage Capacity 利用与储能容量相关的机电行为优化锡取代锆钛酸铅铋薄膜的MPB

4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-10-05 DOI: 10.1080/07315171.2023.2238173

Hitesh Kumar, Pratiksha Agnihotri, Ratnamala Chatterjee, Radheshyam Rai

引用次数: 0

Investigation of Structural and Dielectric Behavior of Ba0.7Gd0.3MoxFe12-xO19 (Where x = 0.02) Hexaferrite Ceramics Ba0.7Gd0.3MoxFe12-xO19 (x = 0.02)六铁体陶瓷的结构和介电行为研究

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI: 10.1080/07315171.2023.2189851

Pratiksha Agnihotri, Abhijeet Kumar, R. Rai, Budhendra Singh

引用次数: 1

Photoluminescence Properties of Ho3+-doped Fluoroborate Optical Glasses 掺杂氟硼酸盐光学玻璃的光致发光性能

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI: 10.1080/07315171.2023.2189849

Z. T. Naik, B. H. Rudramadevi

{"title":"Photoluminescence Properties of Ho3+-doped Fluoroborate Optical Glasses","authors":"Z. T. Naik, B. H. Rudramadevi","doi":"10.1080/07315171.2023.2189849","DOIUrl":"https://doi.org/10.1080/07315171.2023.2189849","url":null,"abstract":"Abstract A trivalent rare earth ion Holmium doped zinc magnesium lithium fluoroborate (ZMLB) glasses with the composition of 10ZnO-10MgO-20LiF-(60-x)B2O3-xHo2O3 (where x = 0, 0.1, 0.3, 0.5 and 1 mol%) were prepared by a well-known melt quenching procedure. The produced glass samples structural, optical, emission and decay curve characteristics have been investigated. From the X-ray diffraction investigation, it is confirmed all the produced glasses possess amorphous nature. The borate-oxygen and vibration bonds were noticed by using Fourier transform infrared analysis. From the ultraviolet-visible absorption studies, the produced glasses absorption peaks were noticed and optical energy band gap values also identified by using Tauc’s relation. Under excitation with 456 nm, the Ho3+ activated ZMLB glasses luminescence spectra consist of three luminescence bands positioned at 550, 677 and 764 nm were corresponding electronic transitions are 5S2 + 5F4 → 5I8, 5F5→ 5I8 and 5F4→ 5I7, respectively. From all these emission bands the prominent emission band observed at 550 nm (green). For the Ho3+ activated ZMLB glasses, the lifetimes were decreased with the enhance of Ho3+ doping content owing to energy transfer in resonance form in between Ho3+ ions. From emission spectra, the CCT and CIE coordinates were estimated, and the CIE values are pointed greenish-yellow area in CIE image. Therefore, all these findings convey that the current zinc magnesium lithium fluoroborate glasses conceivably significant candidate for green display and lighting applications.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90869195","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

High-frequency inlaid cylindrical piezoelectric transducer for high-sensitivity acoustics 用于高灵敏度声学的高频镶嵌圆柱形压电换能器

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI: 10.1080/07315171.2023.2189852

Tian Rong, Qinghua Luo, Chenxu Wang, Yingchun Li, Guangle Jia, Zhaoxiang Yu

引用次数: 0

A ring-type traveling wave linear ultrasonic motor based on in-plane third-order modal vibration 一种基于面内三阶模态振动的环形行波直线超声电机

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI: 10.1080/07315171.2023.2189853

Junlin Yang, Ye Chen, Jinbo Yang, Chaoqun Xiang, Liang Li

{"title":"A ring-type traveling wave linear ultrasonic motor based on in-plane third-order modal vibration","authors":"Junlin Yang, Ye Chen, Jinbo Yang, Chaoqun Xiang, Liang Li","doi":"10.1080/07315171.2023.2189853","DOIUrl":"https://doi.org/10.1080/07315171.2023.2189853","url":null,"abstract":"Abstract This paper proposes a new type of circular ring traveling wave linear ultrasonic motor with incomplete teeth. The motor’s movable slider is pressed against the end face of the tooth structure on the outer surface of the circular ring vibrator under a certain pre-pressure, four piezoelectric ceramic plates are evenly distributed at 90° intervals on the inner side of the circular structure, and four sets of driving teeth are arranged at 45° intervals from the position of the piezoelectric ceramic plates.When the motor is in operation, only one driving tooth works, and the life of the ultrasonic motor can be increased by rotating the different working teeth. The motor operates in two in-plane third-order bending modes that are orthogonal to each other at the same frequency. The dynamic design and simulation of the vibrator was carried out using ANSYS finite element software to analyze the effect of the structure on the mode. The principle prototype was fabricated, and the operating mode of the vibrator was measured using a laser Doppler vibrometer (LDV), and the vibration characteristics and output performance of the prototype were tested. Experimental results show that the motor runs smoothly at the excitation voltage of 240 V peak-to-peak, the excitation frequency of 30.459 kHz and the pre-pressure of 0.6 N, with the maximum output force of 90 mN and the motor no-load speed of 102 mm/s.","PeriodicalId":50451,"journal":{"name":"Ferroelectrics Letters Section","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85401523","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

Research on a high-frequency unfilled layered symmetrical piezoelectric material with a high effective electromechanical coupling coefficient 具有高效机电耦合系数的高频非填充层状对称压电材料的研究

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI: 10.1080/07315171.2023.2189848

Tian Rong, Chenxu Wang

引用次数: 0

Theoretical study on the negative differential resistance behavior of N-doped GeSe monolayer n掺杂GeSe单层负差分电阻行为的理论研究

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI: 10.1080/07315171.2023.2189850

Caixia Guo, Wenlong Jiao, Tianxing Wang

引用次数: 0

Synergistic effect of self-poled fibre based flexible lead-free KNN/P(VDF-HFP) nanofiber mat for scavenging piezoelectric energy 自极性纤维基柔性无铅KNN/P(VDF-HFP)纳米纤维垫清除压电能量的协同效应

IF 0.4 4区物理与天体物理

Ferroelectrics Letters Section Pub Date : 2022-11-02 DOI: 10.1080/07315171.2022.2122412

G. Kaur, Pratiksha, Mamta Shandilya, Sahil Kumar

引用次数: 1