2021 IEEE International Magnetic Conference (INTERMAG)最新文献_第4页

Design and Optimization of a Slotless High-speed Permanent-Magnet Synchronous Motor with Non-magnetic Fillers in Stator 定子无磁填料无槽高速永磁同步电机的设计与优化

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579554

Yuan Wan, Lingfeng Zhu, Yuqi Jia, Jian Guo, Qiang Li, Xuefeng Jiang

引用次数: 1

Linear-to-Circular Polarization Converter Based on Meander-line Metasurfaces 基于弯曲线超表面的线圆偏振变换器

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579581

Yulin Zhao, J. Fu, Wan Chen, Bo Lv, Zhefei Wang

引用次数: 1

Application of an Improved Interpolating Element-free Galerkin Method in Magnetic Field Calculation 一种改进的无单元插值伽辽金法在磁场计算中的应用

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579766

Fan Yang, C. Gu

引用次数: 0

A Study of Samples Captured at Phases for Multi-Dimensional Magnetic Recording System with Double Recording Layers 双记录层多维磁记录系统分相捕获样品的研究

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579866

Y. Nakamura, Madoka Nishikawa, Y. Kanai, Y. Okamoto

引用次数: 0

Heterogenous Integrated Displacement Sensor with Grooved Ferrite 带槽铁氧体的异质集成位移传感器

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579733

M. Kisić, Aleksandar Z. Stefanov, M. Lukovic, O. Aleksic, M. Damnjanović, L. Zivanov

{"title":"Heterogenous Integrated Displacement Sensor with Grooved Ferrite","authors":"M. Kisić, Aleksandar Z. Stefanov, M. Lukovic, O. Aleksic, M. Damnjanović, L. Zivanov","doi":"10.1109/INTERMAG42984.2021.9579733","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579733","url":null,"abstract":"This paper presents the realization of displacement sensor based on novel ferrite design with grooves and with the use of modern additive technology (hetero integration) for the production of other sensor parts. The three main parts of the sensor are: the inductor, the grooved ferrite disk and the flexible spacer. The planar inductor is realized using a standard Printed Circuit Board - PCB technology. The spacer of the sensor, which allows sensitivity to the action of displacement, is realized using a Ninjaflex filament and a 3D technology. The ferrite disk is fabricated using a M30 powder (Mn0.5Zn0.5Fe2O4), but in the form of a disk with grooves on its surface. Displacement measurement is performed wirelessly using an external coil around the sensor as an antenna. By the action of the displacement on the sensor surface and the approach of the ferrite to the inductor, its inductance increases, which leads to a decrease in the resonant frequency of the antenna-sensor system. The use of a novel ferrite design with grooves improved sensor characteristics, i.e. the high sensitivity of 0.0026 MHz/µm is achieved.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134428426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling of Single-Digit Nanometer Perpendicular Shape Anisotropy Magnetic Tunnel Junction Driven by Spin-Transfer-Torque 由自旋-传递-转矩驱动的一位数纳米垂直形状各向异性磁隧道结建模

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579780

Manman Wang, Yanfeng Jiang

{"title":"Modeling of Single-Digit Nanometer Perpendicular Shape Anisotropy Magnetic Tunnel Junction Driven by Spin-Transfer-Torque","authors":"Manman Wang, Yanfeng Jiang","doi":"10.1109/INTERMAG42984.2021.9579780","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579780","url":null,"abstract":"Spin Transfer Torque Magnetic Random-Access Memory (STT-MRAM) has become one of the leading candidates for next generation memory applications. One of the key challenges is the simultaneous achievement of low switching current, high thermal stability and large TMR. Low switching current can be achieved by the shrinkage of the device size. However, the thermal stability of the perpendicular magnetic tunnel junction (P-MTJ) is severely damaged with the reduced size. The concept of Perpendicular Shape Anisotropy (PSA) MTJ is proposed recently, in which thicker free layer is adopted to keep the required thermal stability in single-digit nanometers. In this way, relative high thermal stability can be achieved even the size down to sub-tO-nm. The device shows possible application in the nanometer scale and is compatible with the developed CMOS technology nodes. The SPICE model of the PSA-MTJ device is highly required since its operation principle is different from the incumbent STT -MT J device. In this paper, a dynamic model of the PSA-MTJ is developed, including its micromagnetic simulation using LLG equation. In the developed model, the stochastic term is included to denote the effects in nanometer scale. In this way, the accuracy is improved. By analyzing the instantaneous magnetization vector, the switching time is extracted. The impacts of the write voltage scaling on the switching time, the energy consumption and the write failure rate of PSA-MTJ are studied. Based on the model, both the static and dynamic behaviors can be simulated. The scale effect of the PMA device is also studied based on the developed model. Finally, hybrid MTJ/CMOS simulation is performed to validate the developed model for circuit designs and simulations in the single-digit nanometer scale.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114086809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 FePt-C nucleation layer on magnetic properties and nanostructure for FePt-C / FePt-oxide stacked media FePt-C成核层对FePt-C / fept -氧化物堆积介质磁性能和纳米结构的影响

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9580144

K. Tham, Takashi Saito, R. Kushibiki, S. Saito

{"title":"Effect of FePt-C nucleation layer on magnetic properties and nanostructure for FePt-C / FePt-oxide stacked media","authors":"K. Tham, Takashi Saito, R. Kushibiki, S. Saito","doi":"10.1109/INTERMAG42984.2021.9580144","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9580144","url":null,"abstract":"Magnetic properties and nanostructure for FePt-30vol%C (2 nm) / FePt-30vol% GBM (0–8 nm) stacked media was investigated. Following effects of the employment of FePt-C nucleation layer (NL) were confirmed: 1) Msavevaries linearly against melting point (T m) with value (500–600 emu/cm3) smaller than that of media without NL (500–750 emu/cm3) due to volume average of Msave for FePt-C and FePt-GBM granular layer, 2) There is no strong correlation between grain diameter (GD) and degree of ordering (Sinfilm) of the stacked media with T m of the GBM, 3) Ku┴ film dependence on Sinfilm for media with NL shows similar behavior with that of without NL, 4) for media with the same total thickness, the smaller I110 inplane for media with NL than that of without NL reveals that disorder portion in the media with NL increases, 5) the improvement of linearity in I110 inplane for media with NL against total thickness suggests that the homogeneity of the media with is improved, 6) reduction of I100 linplane from XRD in-plane profile, reflected in ℓ4θsat from the torque curve which suggests the reduction of the ratio of FePt grains with their c-axes parallel to the film plane. Further effort would be required to completely exclude the in-plane component.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127399061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetic Target Localization Correction Based on Variance Weight Distribution of Eigenvalue 基于特征值方差权分布的磁目标定位校正

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579576

D. Xie, J. Qiu, J. Ou, Z. Wang, J. Du, Q. Xu

{"title":"Magnetic Target Localization Correction Based on Variance Weight Distribution of Eigenvalue","authors":"D. Xie, J. Qiu, J. Ou, Z. Wang, J. Du, Q. Xu","doi":"10.1109/INTERMAG42984.2021.9579576","DOIUrl":"https://doi.org/10.1109/INTERMAG42984.2021.9579576","url":null,"abstract":"Magnetic target localization has high application value in the fields of underwater target detection and mineral exploration. To address the problems of limited detection range and blind area of single-point detection method, the detection and positioning method based on the weight distribution correction algorithm is proposed. By designing an algorithm that combines the characteristics of the magnetic field gradient matrix to optimize the distribution of the detection array, the precise regional localization of the target is achieved. Firstly, based on the detection range and the characteristics of the obstacle area, the multi-point detection array is analyzed and the weight distribution correction model is established, then the feasibility of the positioning method is analyzed using experiment data, and finally the detection system is built to conduct positioning experiments on specific target. The results show that the multi-point weight distribution correction localization method can effectively obtain the target location information, and the detection accuracy is improved to a certain extent.","PeriodicalId":129905,"journal":{"name":"2021 IEEE International Magnetic Conference (INTERMAG)","volume":"524 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116337518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the magnetomechanical coupled effect on electromagnetic propulsion 电磁推进的磁-力耦合效应分析

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/INTERMAG42984.2021.9579557

Yuxin Yang, Peng Liu, Q. Yin, Keren Dai, Haojie Li, He Zhang

引用次数: 0

The International Magnetics Conference (INTERMAG) 2021 Publications Chairs' Preface 国际磁学会议(INTERMAG) 2021年出版物主席序言

2021 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2021-04-01 DOI: 10.1109/intermag42984.2021.9579900

引用次数: 0