IEEE Magnetics Letters最新文献_第10页

Synthesis of NdFeB Magnetic Particles With High (BH)max From Their Optimized Oxide Powders Through Reduction–Diffusion Method 还原-扩散法制备高（BH）max NdFeB磁性粒子

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-30 DOI: 10.1109/LMAG.2022.3178667

Rambabu Kuchi;Vitalii Galkin;Seunghyun Kim;Jong-Ryul Jeong;Soon-jik Hong;Dongsoo Kim

{"title":"Synthesis of NdFeB Magnetic Particles With High (BH)max From Their Optimized Oxide Powders Through Reduction–Diffusion Method","authors":"Rambabu Kuchi;Vitalii Galkin;Seunghyun Kim;Jong-Ryul Jeong;Soon-jik Hong;Dongsoo Kim","doi":"10.1109/LMAG.2022.3178667","DOIUrl":"https://doi.org/10.1109/LMAG.2022.3178667","url":null,"abstract":"Neodymium–iron–boron (NdFeB) magnetic particles with high (\u0000<italic>BH\u0000)\u0000max\u0000 were obtained using optimized ball-milled (BM) NdFeB oxide powders, instead of unmilled NdFeB oxide powders, through combined chemical processes comprising the spray drying and reduction-diffusion (RD) methods. The NdFeB oxide particles were subjected to the BM process to control their structural properties, including shape and size of the particles. The oxide powders were critical to make the NdFeB magnetic particles with enhanced properties by the RD process. In general, the controlled structural properties of the NdFeB oxide particles have a significant impact on the properties of final NdFeB magnetic particles. This has been explored through the NdFeB magnetic particles synthesized by utilizing BM oxide powders (0, 1, 2, and 4 h) at different time intervals. One-hour BM oxide powders yielded NdFeB magnetic particles with higher magnetic properties: (\u0000<italic>BH\u0000)\u0000max\u0000 of 14.06 MG·Oe, coercivity (\u0000<italic>HC\u0000) of 3.9 kOe, and remanence (\u0000<italic>MR\u0000) of 101 emu/g. This was attributed to minimal shape defects and phase purity with high crystallinity for the optimized BM oxide powders. Thus, NdFeB oxide particles directed the final intermetallic NdFeB magnetic particles structural properties, which strongly affected their magnetic properties. This study on oxide powders BM will be useful for the preparation of other intermetallic alloys with enhanced properties.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"13 ","pages":"1-4"},"PeriodicalIF":1.2,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67902630","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

Novel Radiation Hardened Magnetic Full Adder Using Spin-Orbit Torque for Multinode Upset 用于多节点镦粗的新型辐射硬化自旋轨道力矩磁性全加器

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-30 DOI: 10.1109/LMAG.2022.3178627

Alok Kumar Shukla;Arshid Nisar;Seema Dhull;Brajesh Kumar Kaushik

引用次数: 3

Magnetic Properties of 3d Metal Rods With Composition Gradients Produced by Electroless Deposition 化学沉积复合梯度三维金属棒的磁性能

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-29 DOI: 10.1109/LMAG.2022.3163015

Elena A. Denisova;Lidia A. Chekanova;Sergey V. Komogortsev;Svetlana A. Satsuk;Ivan V. Nemtsev;Rauf S. Iskhakov;Sergey V. Semenov

引用次数: 0

Field-Free Line Magnetic Particle Imaging Magnet Design Using Nested Halbach Cylinders 基于嵌套Halbach圆柱的无场线磁粉成像磁体设计

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-15 DOI: 10.1109/LMAG.2022.3159446

Melike Ergor;Ayhan Bingolbali

引用次数: 0

Logical and Physical Reversibility of Conservative Skyrmion Logic 保守Skyrmion逻辑的逻辑可逆性和物理可逆性

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-11 DOI: 10.1109/LMAG.2022.3174514

Xuan Hu;Benjamin W. Walker;Felipe García-Sánchez;Alexander J. Edwards;Peng Zhou;Jean Anne C. Incorvia;Alexandru Paler;Michael P. Frank;Joseph S. Friedman

引用次数: 0

A Technological Approach for Miniaturization of Three-Dimensional Inductive Levitation Microsuspensions 三维诱导悬浮微悬浮液小型化的技术途径

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-11 DOI: 10.1109/LMAG.2022.3174522

Emil R. Mamleyev;Achim Voigt;Ali Moazenzadeh;Jan G. Korvink;Manfred Kohl;Kirill Poletkin

{"title":"A Technological Approach for Miniaturization of Three-Dimensional Inductive Levitation Microsuspensions","authors":"Emil R. Mamleyev;Achim Voigt;Ali Moazenzadeh;Jan G. Korvink;Manfred Kohl;Kirill Poletkin","doi":"10.1109/LMAG.2022.3174522","DOIUrl":"https://doi.org/10.1109/LMAG.2022.3174522","url":null,"abstract":"In this letter, we report on a technological approach for miniaturization of a inductive levitating microsuspension based on nested three-dimensional (3-D) microcoil structures. In the developed approach, each 3-D microcoil is fabricated separately, beginning with the innermost and thus the smallest coil diameter of the nested microstructure. This helps to overcome fabrication restrictions due to the wire-bonding process and is primarily caused by the size of the bond-head and provides the opportunity to fabricate smaller nested 3-D microcoil structures. We fabricated a nested two-microcoil structure, the inner coil having a diameter of 1000 \u0000<inline-formula><tex-math>$mu$</tex-math></inline-formula>\u0000m and 14 windings, the outer coil with a diameter of 1900 \u0000<inline-formula><tex-math>$mu$</tex-math></inline-formula>\u0000m and eight windings, and demonstrated its application as an inductive levitating microsuspension. In particular, a fabricated 3-D inductive levitating microsuspension was able to levitate a 1100 \u0000<inline-formula><tex-math>$mu$</tex-math></inline-formula>\u0000m diameter disc-shaped proof mass at a height up to 45 \u0000<inline-formula><tex-math>$mu$</tex-math></inline-formula>\u0000m.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"13 ","pages":"1-4"},"PeriodicalIF":1.2,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/5165412/9656771/09772963.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67741223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Micromagnetic Simulation of Nitrogenation Effect on the Magnetic Properties of Sm2Fe17N3 Alloy 氮化作用对Sm2Fe17N3合金磁性能影响的微磁模拟

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-11 DOI: 10.1109/LMAG.2022.3158542

Zhi Yang;Yuanyuan Chen;Yuqing Li;Dongtao Zhang;Weiqiang Liu;Qingmei Lu;Qiong Wu;Hongguo Zhang;Ming Yue

{"title":"Micromagnetic Simulation of Nitrogenation Effect on the Magnetic Properties of Sm2Fe17N3 Alloy","authors":"Zhi Yang;Yuanyuan Chen;Yuqing Li;Dongtao Zhang;Weiqiang Liu;Qingmei Lu;Qiong Wu;Hongguo Zhang;Ming Yue","doi":"10.1109/LMAG.2022.3158542","DOIUrl":"https://doi.org/10.1109/LMAG.2022.3158542","url":null,"abstract":"Nitrogenation is an indispensable process for the formation of Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 and has a major influence on its magnetic properties. In this work, the effect of nitrogenation on the magnetic properties of Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 was investigated by micromagnetic simulation. The normal coercivity, remanence, and the maximum energy product of incompletely nitrided Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 with a nonnitrided Sm\u00002\u0000Fe\u000017\u0000 core size less than 16 nm approach nearly 99% of their values in fully nitrided Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000. Thus, a small nonnitrided Sm\u00002\u0000Fe\u000017\u0000 core does not affect the effective utilization of Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 permanent magnets. The magnetization reversal mode of incompletely nitrided Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 with different sizes of nonnitrided Sm\u00002\u0000Fe\u000017\u0000 cores was evaluated, providing an in-depth fundamental understanding of the demagnetization processes in Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 particles. This work could be useful for optimizing nitrogenation conditions to improve the magnetic properties of Sm\u00002\u0000Fe\u000017\u0000N\u00003\u0000 permanent magnets.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"13 ","pages":"1-5"},"PeriodicalIF":1.2,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67741244","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

Combined Attitude Determination for Real-Time Geomagnetic Navigation 实时地磁导航的组合姿态确定

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-03-07 DOI: 10.1109/LMAG.2022.3156857

Weilin Wang;Zhaonan Jin;Linliang Miao;Zhihao Yang;Sasa Mi;Yijie Qin;Xingzhong Yao;Jun Ou-Yang;Xiaofei Yang

引用次数: 0

Measurement System for Characterization of Ferromagnetic Cores Under Controlled Magnetic Field Waveform 可控磁场波形下铁磁芯特性的测量系统

IF 1.2 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2022-02-28 DOI: 10.1109/LMAG.2022.3155107

Branko M. Koprivica;Milan V. Plazinić

引用次数: 1

Gaussian Random Number Generator With Reconfigurable Mean and Variance Using Stochastic Magnetic Tunnel Junctions 基于随机磁隧道结的均值和方差可重构高斯随机数发生器