IEEE Magnetics Letters最新文献_第2页

Néel Relaxation of Magnetic Nanoparticle Clusters 磁性纳米颗粒团簇的nsamel弛豫

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-01-20 DOI: 10.1109/LMAG.2025.3531777

Frederik L. Durhuus;Theis H. van Bijlevelt Rix;Maciej A. Głód;Marco Beleggia;Cathrine Frandsen

引用次数: 0

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

引用次数: 0

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

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

A New Differential Magnetic Probe With Out-of-Phase Balun and Differential Loops 一种新型非相平衡差动磁探头

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-10-31 DOI: 10.1109/LMAG.2024.3490383

Lei Wang;Chenbing Qu;Rong Zhou;Zhangming Zhu

{"title":"A New Differential Magnetic Probe With Out-of-Phase Balun and Differential Loops","authors":"Lei Wang;Chenbing Qu;Rong Zhou;Zhangming Zhu","doi":"10.1109/LMAG.2024.3490383","DOIUrl":"https://doi.org/10.1109/LMAG.2024.3490383","url":null,"abstract":"In this letter, a new differential magnetic field probe with high sensitivity is presented. The differential magnetic probe includes a 180° out-of-phase balun, a pair of differential detection loops, and an output port with a 50 Ω impedance match. Unlike conventional magnetic probes with a single detection loop, a pair of differential detection loops is used to measure double magnetic-field components. Moreover, a 180° out-of-phase balun is utilized to process the differential-mode signals from these differential detection loops, which can make these probes directly connected to the oscilloscope and no longer rely on vector network analyzers. Finally, the differential magnetic probe is designed, simulated, and measured to verify the design effectiveness, and a near-field scanning system is used to characterize the developed probe. Measured results reveal that the designed differential magnetic probe not only can measure more magnetic-field energy, but also directly connect to the oscilloscope due to its own differential mode operation function in the out-of-phase balun. Therefore, the probe is very suitable for actual interference source location testing.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"15 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761395","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

Exchange-Biased Multiring Planar Hall Magnetoresistive Sensors With Nanotesla Resolution in Nonshielded Environments 非屏蔽环境下具有纳特斯拉分辨率的交换偏压多线平面霍尔磁阻传感器

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-10-31 DOI: 10.1109/LMAG.2024.3490380

J. Schmidtpeter;Proloy T. Das;Y. Zabila;C. Schubert;T. Gundrum;T. Wondrak;D. Makarov

{"title":"Exchange-Biased Multiring Planar Hall Magnetoresistive Sensors With Nanotesla Resolution in Nonshielded Environments","authors":"J. Schmidtpeter;Proloy T. Das;Y. Zabila;C. Schubert;T. Gundrum;T. Wondrak;D. Makarov","doi":"10.1109/LMAG.2024.3490380","DOIUrl":"https://doi.org/10.1109/LMAG.2024.3490380","url":null,"abstract":"Planar Hall magnetoresistive sensors (PHMRs) are promising candidates for various magnetic sensing applications due to their high sensitivity, low power consumption, and compatibility with integrated circuit technology. However, their performance is often limited by inherent noise sources, impacting their resolution and overall sensitivity. Here the effect of three bilayer structures NiFe(10 nm)/IrMn(10 nm), NiFe(30 nm)/IrMn(10 nm), and NiFe(30 nm)/IrMn(20 nm) on noise levels is investigated at low frequency (DC-25 Hz). This study includes a detailed investigation on the optimization process and noise characteristics of multiring PHMR sensors, focusing on identifying and quantifying the dominant noise sources. The experimental measurements are complemented by a theoretical analysis of noise sources including thermal noise, 1/\u0000<italic>f\u0000 noise, intermixing, and environmental noise. The best magnetic resolution is observed for the NiFe(30 nm)/IrMn(10 nm) structure, which achieves a detectivity below 1.5 nT/√Hz at 10 Hz in a nonshielded environment at room temperature. In addition, a substantial improvement in sensitivity is observed by annealing the sensors at 250 °C for 1 h. The findings of this study contribute to a deeper understanding of noise behavior in PHMR sensors, paving the way for developing strategies to improve their performance for demanding sensing applications at low frequencies.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"15 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798050","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

Spintronic Neuron Using a Magnetic Tunnel Junction for Low-Power Neuromorphic Computing 利用磁隧道结的自旋电子神经元实现低功耗神经形态计算

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-10-24 DOI: 10.1109/LMAG.2024.3484957

Steven Louis;Hannah Bradley;Cody Trevillian;Andrei Slavin;Vasyl Tyberkevych

引用次数: 0

Relaxation Dynamics of Sputtered Fe80Co20 Thin Films on Different Substrates: Micromagnetic Validation 不同衬底上溅射Fe80Co20薄膜的弛豫动力学：微磁验证

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-10-21 DOI: 10.1109/LMAG.2024.3484271

Mohammad Asif;Prashant Kumar;Mirza Tariq Beg;M. Nizamuddin;Bijoy Kumar Kuanr

{"title":"Relaxation Dynamics of Sputtered Fe80Co20 Thin Films on Different Substrates: Micromagnetic Validation","authors":"Mohammad Asif;Prashant Kumar;Mirza Tariq Beg;M. Nizamuddin;Bijoy Kumar Kuanr","doi":"10.1109/LMAG.2024.3484271","DOIUrl":"https://doi.org/10.1109/LMAG.2024.3484271","url":null,"abstract":"In the present investigation, we have demonstrated the effect of different substrates (Si, SiO\u00002\u0000<inline-formula><tex-math>${rm{, }};text{and};text {{A}}{{{text {l}}}_{2}}{{{text {O}}}_{3}}$</tex-math></inline-formula>\u0000) and deposition temperatures (\u0000<italic>TD\u0000 = 27 °C to 450 °C) of sputtered Fe\u000080\u0000Co\u000020\u0000 ferromagnetic thin films of 30 nm thickness on their microstructural, static, and dynamic properties. The lowest value of Gilbert damping (α\u0000eff\u0000) of 5.1 \u0000<inline-formula><tex-math>$ times, 10$</tex-math></inline-formula>\u0000−3\u0000 with a high saturation magnetization (\u0000<italic>MS\u0000) is the outcome of the improved atomic ordering and overall film crystallinity with ultralow interfacial roughness (0.23 ± 0.03 nm) of 400 °C grown films. The structural analysis from atomic force microscopy depicts temperature-dependent improvement in films grown at 400 °C. From ferromagnetic resonance and vibrating sample magnetometry experiments, magnetization was determined to be the highest \u0000<italic>MS\u0000 \u0000<inline-formula><tex-math>$ approx text {1628.8} {rm{emu/cc}}$</tex-math></inline-formula>\u0000 for the films grown at 400 °C. We have validated the above-mentioned experimental data through micromagnetic simulation using ubermag and an object-oriented micromagnetic framework that is used in backend for computation.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"15 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777579","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

Biaxially Stretchable Spin Valves With Stable Magnetic Sensing Performance 具有稳定磁感应性能的双轴可拉伸旋转阀

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2024-10-17 DOI: 10.1109/LMAG.2024.3483069

Mengting Zou;Xilai Bao;Xinze Li;Yali Xie;Huali Yang;Lili Pan;Xiaojian Zhu;Run-Wei Li

引用次数: 0