IEEE Transactions on Magnetics最新文献_第10页

Experimental Characterization and Analysis of Magnetic Local Forces in Nonlinear Magnetic Materials 非线性磁性材料中磁性局部力的实验表征与分析

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-03-28 DOI: 10.1109/TMAG.2026.3697887

Haoda Li;Yanhui Gao;Xiaojun Zhao;Weimin Guan;Siyuan Wang

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A Dual-Stator Synchronous-Vernier Permanent Magnet Machine: Comprehensive Design-Space Study for Power Factor Enhancement 双定子同步游标永磁电机：功率因数增强的综合设计空间研究

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-03-13 DOI: 10.1109/TMAG.2026.3692558

Litao Dai;Shuangxia Niu;Xiaohui Huang;Zekai Lyu;Zhenyao Sun;K. T. Chau

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Complex Frequency-Domain Finite Element Analysis for Magneto-Mechanical Coupling in Amorphous Wound Cores 非晶绕芯磁-力耦合的复频域有限元分析

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IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-06-15 DOI: 10.1109/TMAG.2026.3703845

Shengze Gao;Ruihang Li;Xiaojun Zhao;Fangyu Gao;Haoda Li;Lanrong Liu

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Switchable Nonreciprocity of Spin-Wave Interference Patterns in In-Plane/Perpendicular-Magnetic-Anisotropy Waveguide System 平面/垂直-磁-各向异性波导系统中自旋波干涉图样的可切换非互易性

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-03-13 DOI: 10.1109/TMAG.2026.3693146

Khalid A. Omari;Xingtai Chen;Matthew T. Bryan;Phil Meeson;Wenqing Liu

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Reduction of Switching Error Probability in Magnetization Switching Using Spin-Splitter Torque 利用自旋分裂转矩降低磁化开关中的开关误差概率

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-07-22 DOI: 10.1109/TMAG.2026.3716057

Tomoki Watanabe;Keisuke Yamada;Yoshinobu Nakatani

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Noise-Induced Geometric Deformation of PCA Representations in Magnetically Split Mössbauer Spectra 磁分裂Mössbauer光谱中PCA表示的噪声诱导几何变形

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-03-12 DOI: 10.1109/TMAG.2026.3692441

Sonia Sharmin;Chiharu Mitsumata;Eiji Kita;Hideto Yanagihara

{"title":"Noise-Induced Geometric Deformation of PCA Representations in Magnetically Split Mössbauer Spectra","authors":"Sonia Sharmin;Chiharu Mitsumata;Eiji Kita;Hideto Yanagihara","doi":"10.1109/TMAG.2026.3692441","DOIUrl":"https://doi.org/10.1109/TMAG.2026.3692441","url":null,"abstract":"Reliable extraction of hyperfine parameters from Mössbauer spectra becomes challenging when measurements are affected by significant noise. Under such conditions, nonlinear least-squares (NLLS) fitting may produce apparently acceptable spectral fits while the estimated physical parameters deviate substantially from their true values. In this work, we investigate the effect of measurement noise on the geometric structure of Mössbauer spectral data using principal component analysis (PCA). A large synthetic ensemble of magnetically split 57Fe sextet spectra is generated and analyzed using a fixed-basis PCA representation trained on clean spectra. Measurement noise is introduced over a controlled signal-to-noise ratio (SNR) range, and the resulting geometric distortion of the PCA representation is quantified through global subspace drift and local score-space distortion metrics. The results show that increasing noise induces systematic global subspace drift and local score-space dispersion in the PCA representation of the spectral manifold, and that these geometric changes reveal the onset of parameter instability earlier than conventional residual-based fitting diagnostics. These findings demonstrate that PCA-based geometric analysis provides a useful complementary tool for assessing the reliability of Mössbauer parameter extraction under noisy measurement conditions.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 10","pages":"1800105-1800105"},"PeriodicalIF":1.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149249735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Magnetic and Structural Tuning of Nanocrystalline Ni–Zn Ferrites With Varying Compositions and Heat Treatment 不同成分和热处理的纳米晶镍锌铁氧体的磁性和结构调谐

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-03-08 DOI: 10.1109/TMAG.2026.3691386

M. Georgieva;D. Tzankov;D. Kovacheva;V. Tumbalev;T. Karadimov;P. A. Georgiev

{"title":"Magnetic and Structural Tuning of Nanocrystalline Ni–Zn Ferrites With Varying Compositions and Heat Treatment","authors":"M. Georgieva;D. Tzankov;D. Kovacheva;V. Tumbalev;T. Karadimov;P. A. Georgiev","doi":"10.1109/TMAG.2026.3691386","DOIUrl":"https://doi.org/10.1109/TMAG.2026.3691386","url":null,"abstract":"Nanocrystalline Zn-substituted nickel ferrites <inline-formula> <tex-math>$left(mathrm{Ni}_{1-mathrm{x}} mathrm{Zn}_{mathrm{x}} mathrm{Fe}_2 mathrm{O}_4right)$ </tex-math></inline-formula> were synthesized via a glycine fueled auto combustion and subsequently annealed at <inline-formula> <tex-math>$400^{circ} mathrm{C}, 600^{circ} mathrm{C}, 700^{circ} mathrm{C}$ </tex-math></inline-formula>, and <inline-formula> <tex-math>$800^{circ} mathrm{C}$ </tex-math></inline-formula> to investigate the effects of composition and thermal treatment on structural and magnetic properties. X-ray diffraction and Raman spectroscopy analyses confirm the formation of a singlephase cubic spinel structure across all compositions, with systematic grain growth observed upon increasing annealing temperature. Structural analysis reveals that <inline-formula> <tex-math>$mathrm{Zn}^{2+}$ </tex-math></inline-formula> ions preferentially occupy tetrahedral (A) sites, leading to a linear expansion of the lattice parameter with increasing Zn content. Magnetic properties are strongly dependent on Zn substitution, with saturation magnetization reaching a maximum near <inline-formula> <tex-math>$x approx 0.5$ </tex-math></inline-formula>, while coercivity decreases nearly linearly with increasing Zn concentration, reflecting reduced magnetocrystalline anisotropy. A ferrimagnetic to superparamagnetic transition is achieved through controlled particle size variation while retaining high magnetic moment, highlighting the potential of <inline-formula> <tex-math>$mathrm{Ni}_{1-mathrm{x}} mathrm{Zn}_{mathrm{x}} mathrm{Fe}_2 mathrm{O}_4$ </tex-math></inline-formula> nanoparticles for biomedical applications.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 10","pages":"2002105-2002105"},"PeriodicalIF":1.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149249766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Composition and Temperature Control of Spin Canting in Mn3+xPt Noncollinear Antiferromagnet Mn3+xPt非共线反铁磁体自旋铸造的组成及温度控制

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-04-14 DOI: 10.1109/TMAG.2026.3683030

Dennis J. X. Lin;Bee Chun Lim;Jian Rui Soh;James Louremban;Hui Ru Tan;Hnin Yu Yu Ko;Mingsheng Zhang;Hang Khume Tan;Lisen Huang;Shaohai Chen;Pin Ho

{"title":"Composition and Temperature Control of Spin Canting in Mn3+xPt Noncollinear Antiferromagnet","authors":"Dennis J. X. Lin;Bee Chun Lim;Jian Rui Soh;James Louremban;Hui Ru Tan;Hnin Yu Yu Ko;Mingsheng Zhang;Hang Khume Tan;Lisen Huang;Shaohai Chen;Pin Ho","doi":"10.1109/TMAG.2026.3683030","DOIUrl":"https://doi.org/10.1109/TMAG.2026.3683030","url":null,"abstract":"Noncollinear antiferromagnetic (NCAF) materials, such as <inline-formula> <tex-math>$L1_2$ </tex-math></inline-formula>–Mn3Pt, are attractive for energy-efficient sensing, memory, and computing applications. Here, (001)-textured Mn3+xPt NCAF films are fabricated using a [Mn (<inline-formula> <tex-math>$t_{text{Mn}}$ </tex-math></inline-formula>: 0.6–0.8 nm)/Pt 0.1 nm]30 multilayer structure, where the Mn thickness (<inline-formula> <tex-math>$t_{text{Mn}}$ </tex-math></inline-formula>) is systematically modulated to control the composition and magnetic structure. Increasing the <inline-formula> <tex-math>$t_{text{Mn}}$ </tex-math></inline-formula> adjusts the Mn:Pt ratio from 2.8:1 to 4.3:1, leading to the partial replacement of Pt lattice sites by the excess Mn atoms and thereby modifying the magnetic structure. The anomalous Hall effect (AHE) loops of the multilayers exhibit polarity reversal at different critical transition temperatures (<inline-formula> <tex-math>$T_{text{cri}}$ </tex-math></inline-formula>), reducing from 235 to 135 K when <inline-formula> <tex-math>$t_{text{Mn}}$ </tex-math></inline-formula> is increased from 0.6 to 0.7 nm. Meanwhile, the X-ray magnetic circular dichroism (XMCD) spectra of these multilayers exhibit similar temperature-driven polarity changes near <inline-formula> <tex-math>$T_{text{cri}}$ </tex-math></inline-formula>. Collectively, these results indicate a composition- and temperature-controlled crossover from a predominantly NCAF to spin-canted NCAF order with ferromagnetic-like contribution.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 10","pages":"2500505-2500505"},"PeriodicalIF":1.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149249852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Influence of Mode-Induced Strain Gradients on Magnetization Reversal and Frequency Sensitivity in Magnetoelectric MEMS Resonators 模致应变梯度对磁电MEMS谐振器磁化反转和频率灵敏度的影响

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-03-11 DOI: 10.1109/TMAG.2026.3692390

Yuxi Wang;Daozheng Luo;Mingye Du;Jiawei Li;Tao Wu

{"title":"Influence of Mode-Induced Strain Gradients on Magnetization Reversal and Frequency Sensitivity in Magnetoelectric MEMS Resonators","authors":"Yuxi Wang;Daozheng Luo;Mingye Du;Jiawei Li;Tao Wu","doi":"10.1109/TMAG.2026.3692390","DOIUrl":"https://doi.org/10.1109/TMAG.2026.3692390","url":null,"abstract":"Magnetoelectric (ME) MEMS resonators based on the <inline-formula> <tex-math>$Delta$ </tex-math></inline-formula>E effect enable frequency-based magnetic sensing through magnetic-fieldinduced modulation of the effective elastic modulus. In suspended resonators, operating-mode-induced strain gradients influence magnetization reversal and <inline-formula> <tex-math>$Delta$ </tex-math></inline-formula>E-driven frequency modulation, but their roles remain insufficiently explored. Here, we demonstrate a structural approach to mitigate such strain gradients by introducing a Pt interfacial layer in suspended <inline-formula> <tex-math>$Delta$ </tex-math></inline-formula>E ME resonators. Finite-element analysis and micromagnetic simulations show that the FeGaB/Pt bilayer reduces the strain gradient and promotes more coherent magnetization reversal. Magnetic-field-dependent measurements reveal an enhanced maximum frequency shift and a more than fivefold improvement in peak field sensitivity, increasing from ~11 to ~56 kHz/mT. These results establish strain-gradient engineering as an effective strategy for optimizing on-chip ME resonators.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 10","pages":"4700105-4700105"},"PeriodicalIF":1.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149249927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Bridge-Selective Saturation-Guided Topology Optimization Within a Hierarchical Framework for IPMSM Rotors IPMSM转子分层框架下的桥选饱和引导拓扑优化

IF 1.9 3区工程技术

IEEE Transactions on Magnetics Pub Date : 2026-10-01 Epub Date: 2026-06-11 DOI: 10.1109/TMAG.2026.3702809

Ziran Cheng;Jian Gao;Yufeng Zhao;Zhixiang He;Kun Liu;Shoudao Huang

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