IEEE Magnetics Letters最新文献_第6页

IEEE Magnetics Society Information IEEE磁学学会信息

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-20 DOI: 10.1109/LMAG.2024.3510497

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2024 Index IEEE Magnetics Letters Vol. 15 2024索引IEEE Magnetics Letters Vol. 15

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-17 DOI: 10.1109/LMAG.2025.3529354

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IF 1.6 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-01 Epub Date: 2026-03-03 DOI: 10.1109/LMAG.2025.3625478

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Magnetics for Future Transportation: From Memory to Motors 磁性用于未来交通：从记忆到电机

IF 1.6 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-01 Epub Date: 2025-12-12 DOI: 10.1109/LMAG.2025.3643306

Meng-Huang Lai;Andrew Knight;Laura H. Lewis;Noureddine Takorabet;Atsufumi Hirohata;Min-Fu Hsieh

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IEEE Magnetics Society Information IEEE磁学学会信息

IF 1.6 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-01 Epub Date: 2026-03-03 DOI: 10.1109/LMAG.2025.3625482

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Hexagonal-Shaped High-Frequency Transformer With Built-In Leakage Inductance and System Integration of Silicon Carbide MOSFETs 内置漏感的六角形高频变压器及碳化硅mosfet的系统集成

IF 1.6 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-01 Epub Date: 2025-12-03 DOI: 10.1109/LMAG.2025.3640014

Nafis Subhani;Weichong Yao;Foad Taghizadeh;Junwei Lu;Yong Zhu

{"title":"Hexagonal-Shaped High-Frequency Transformer With Built-In Leakage Inductance and System Integration of Silicon Carbide MOSFETs","authors":"Nafis Subhani;Weichong Yao;Foad Taghizadeh;Junwei Lu;Yong Zhu","doi":"10.1109/LMAG.2025.3640014","DOIUrl":"https://doi.org/10.1109/LMAG.2025.3640014","url":null,"abstract":"This letter presents a novel high-frequency transformer (HFT) structure with built-in leakage inductance and integrated power electronics circuits for isolated dc–dc converters. The developed hexagonal-shaped HFT is constructed using multiple U26/22/16 ferrite cores and is designed to operate at high switching frequencies. Unlike conventional designs, both the primary and secondary windings are wound around the central limbs, enabling precise control of leakage inductance and eliminating the need for bulky auxiliary inductors in dc–dc dual active bridge converters. In addition, the design integrates SiC <sc>mosfet</small>s, gate drivers, and a heat sink directly within the magnetic assembly, thereby reducing packaging volume and achieving a more compact converter structure. The electromagnetic characteristics of the HFT are analyzed using 3-D finite-element simulations in COMSOL, with results showing close agreement with design predictions. A prototype has been fabricated and experimentally validated, confirming the feasibility and effectiveness of the approach for high-power converter applications.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"16 ","pages":"1-5"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148464014","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

IEEE Magnetics Letters Publication Information IEEE Magnetics Letters Publication Information

IF 1.6 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-01 Epub Date: 2026-03-03 DOI: 10.1109/LMAG.2025.3625526

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Highly Efficient Transcranial Magnetic Stimulation Coil Based on Artificial Magnetic Conductor and Mu-Negative Metamaterial 基于人工磁导体和mu负性超材料的高效经颅磁刺激线圈

IF 1.6 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-01 Epub Date: 2025-12-11 DOI: 10.1109/LMAG.2025.3643291

Hai-Jie Li;Zhi-Hong Tu;Gui-Ping Jin

{"title":"Highly Efficient Transcranial Magnetic Stimulation Coil Based on Artificial Magnetic Conductor and Mu-Negative Metamaterial","authors":"Hai-Jie Li;Zhi-Hong Tu;Gui-Ping Jin","doi":"10.1109/LMAG.2025.3643291","DOIUrl":"https://doi.org/10.1109/LMAG.2025.3643291","url":null,"abstract":"This letter demonstrates an innovative method to enhance the efficiency of conventional transcranial magnetic stimulation (TMS) coils. This method utilizes the in-phase reflection property of artificial magnetic conductor (AMC) and the evanescent wave amplification property of mu-negative (MNG) metamaterial to optimize the spatial magnetic field distribution surrounding the TMS coil, which leads to the improvement in coil efficiency. According to this method, the designed AMC and MNG are added to a conventional figure-8 coil, resulting in a nearly 5.9 times increase in stimulation intensity compared to the original coil. This significant increase in stimulation intensity, achieved without modifying the hardware driving circuit and coil structure, indicates a remarkable improvement in coil efficiency. In addition, compared to the original figure-8 coil, the addition of AMC and MNG demonstrates a 24.9% improvement in focality, with only a 11.9% reduction in penetration depth. These enhancements suggest that the method has the potential to promote the further development of TMS equipment and possesses the potential for widespread application. Lastly, simulation and experimental results are provided to validate the feasibility and advantages of this method.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"16 ","pages":"1-5"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148464451","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

Enhancement of Magnon–Photon Coupling Strength: Effect of Spatial Distribution 磁子-光子耦合强度的增强：空间分布效应

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-11-13 DOI: 10.1109/LMAG.2024.3497794

Sheetal Yadav;Monika Sharma;Bijoy K. Kuanr

{"title":"Enhancement of Magnon–Photon Coupling Strength: Effect of Spatial Distribution","authors":"Sheetal Yadav;Monika Sharma;Bijoy K. Kuanr","doi":"10.1109/LMAG.2024.3497794","DOIUrl":"https://doi.org/10.1109/LMAG.2024.3497794","url":null,"abstract":"Magnon–photon hybrid systems have potential applications in quantum information processing. The spatial distribution of magnetic field intensity plays a crucial role in enhancing coupling strength. We have investigated strong magnon–photon coupling using a planar waveguide with defects in the ground for dual-frequency ranging from S to C band. Dual inverted split ring resonators were used as a photon resonator, and a yttrium iron garnet (YIG) pellet acted as a magnon source. The interaction between magnon and photon modes was manipulated by variations in the spatial distribution of the magnetic field along the microstrip line. The ferrite sample was placed at three different positions, viz., A, B, and C. The coupling strength \u0000<inline-formula><tex-math>$g$</tex-math></inline-formula>\u0000 was tuned from 188 to 281 MHz by varying YIG locations at different positions along the microstrip line. The spin-number-normalized coupling strength was significantly tuned up to 50% by controlling the position of YIG. Hence, it provides another degree of freedom for the qubit information exchange. The other parameters such as cooperativity and coupling constant were also determined. This work paves the way for developing innovative hybrid systems with tunable high-gain magnon–photon coupling systems in planar geometry.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"15 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142938554","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

Controllable Damping Boring Tool Based on Magnetorheological Elastomer 基于磁流变弹性体的可控阻尼镗床

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-11-01 DOI: 10.1109/LMAG.2024.3490385

Xuhui Liu;Bin Wan;Bin Xu;Jing Qi;Xingyu He;Zheng Zhou;Yan Wu

{"title":"Controllable Damping Boring Tool Based on Magnetorheological Elastomer","authors":"Xuhui Liu;Bin Wan;Bin Xu;Jing Qi;Xingyu He;Zheng Zhou;Yan Wu","doi":"10.1109/LMAG.2024.3490385","DOIUrl":"https://doi.org/10.1109/LMAG.2024.3490385","url":null,"abstract":"To address the prevalent issue of vibrations in long boring tools with a significant length-to-diameter ratio, we have developed a novel controllable damping boring tool. This innovative tool leverages the unique properties of magnetorheological elastomers (MREs) to counteract vibrations effectively. Using ANSYS software, we analyzed the magnetic field within the tool, revealing a direct link between excitation current and magnetic induction intensity within the MRE. Concurrently, experiments confirmed a strong correlation between magnetic induction and the MRE's elastic modulus, highlighting the material's tunable stiffness under varying magnetic fields. Further investigation through modal and harmonic response analyses has unveiled that augmenting the MRE's elastic modulus achieves two objectives. First, it raises the natural frequency of the boring tool. Second, and perhaps more importantly, it significantly diminishes the tool's response amplitude to vibrations. To illustrate, at an excitation current of 0 A, our measurements recorded a response amplitude of 0.31504 mm for the controllable damping boring tool. Furthermore, when the excitation current was increased to 1 A, the response amplitude was notably reduced to 0.1523 mm. These compelling results highlight the MRE controllable damping boring tool's exceptional dynamic adjustment capabilities and its remarkable efficacy in vibration suppression.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"15 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142905879","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