IEEE Magnetics Letters最新文献_第2页

Development of a Flexible Magnetic Catheter for Urinary Stone Removal 一种用于尿路结石清除的柔性磁导尿管的研制

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-12-03 DOI: 10.1109/LMAG.2025.3639932

Ly Phi Cuong;Binh Duy Le;Jong-Oh Park;Kim Tien Nguyen;Byungjeon Kang;Jayoung Kim

引用次数: 0

Magnetic Structures in Amorphous Glass-Coated Microwires Induced by Longitudinal and Transverse Stresses 纵向和横向应力诱导的非晶玻璃微丝的磁性结构

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-10-30 DOI: 10.1109/LMAG.2025.3627471

Alexander Chizhik;Valentina Zhukova;Arcady Zhukov

引用次数: 0

Understanding the Line Shape of Ferromagnetic Resonance Spectrum in a Flip-Chip Measurement 在倒装片测量中了解铁磁共振频谱的线形

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-10-30 DOI: 10.1109/LMAG.2025.3627467

Elyssa D. DeVisscher;Anna E. Mays;Xin Fan

引用次数: 0

Evaluation of Adjacent Track Erasure for Thermal Exchange Coupled Composite Media 热交换耦合复合介质相邻轨迹擦除的评价

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-09-10 DOI: 10.1109/LMAG.2025.3608663

Yijia Liu;R. H. Victora

{"title":"Evaluation of Adjacent Track Erasure for Thermal Exchange Coupled Composite Media","authors":"Yijia Liu;R. H. Victora","doi":"10.1109/LMAG.2025.3608663","DOIUrl":"https://doi.org/10.1109/LMAG.2025.3608663","url":null,"abstract":"In this letter, the effectiveness of a novel three-layer thermally exchanged coupled composite media (3ly-ECC) design is evaluated in enhancing magnetic recording performance, particularly, in mitigating adjacent track erasure (ATE). The performance of the proposed 3ly-ECCs is compared against the two-layer (2ly) counterparts at both high peak temperature (850 K) and reduced peak temperature (650 K). It is found that incorporating a high saturation magnetization in the top layer and a high anisotropy in the middle layer within the 3ly configurations yields a 15% reduction in ATE and a 0.6 dB gain in signal-to-noise ratio (SNR), at the expense of a tolerable 5% increase in transition jitter relative to the 2ly structures. These findings highlight, that with a high thermal gradient during the writing process, the combination of high-Ku and high-Ms media designs effectively suppresses thermally induced remanent noise, therefore, improving stability against off-track thermal perturbation. Nonetheless, the performance gains in ATE and SNR come with the acceptable tradeoff of transitijon jitter loss, which is a compromise that may be justified in high-density recording applications where minimizing intertrack interference is critical.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"16 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255897","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

Exploration of Synthesis Conditions for High-Magnetization Ba-Ca-Based W-Type Hexaferrites 高磁化ba - ca基w型六铁体合成条件的探索

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-08-15 DOI: 10.1109/LMAG.2025.3599741

Matsui Yosuke;Watanabe Kowashi;Kakizaki Koichi;Kamishima Kenji

{"title":"Exploration of Synthesis Conditions for High-Magnetization Ba-Ca-Based W-Type Hexaferrites","authors":"Matsui Yosuke;Watanabe Kowashi;Kakizaki Koichi;Kamishima Kenji","doi":"10.1109/LMAG.2025.3599741","DOIUrl":"https://doi.org/10.1109/LMAG.2025.3599741","url":null,"abstract":"This study presents the synthesis of W-type hexagonal ferrite (BaZn<inline-formula><tex-math>$_{2}$</tex-math></inline-formula>Fe<inline-formula><tex-math>$_{16}$</tex-math></inline-formula>O<inline-formula><tex-math>$_{27}$</tex-math></inline-formula>) using a powder metallurgy approach to enhance magnetic properties through controlled Ca doping. By identifying the crystalline phase and repeating to adjust the composition, we achieved a primary-phase W-type hexaferrite substituted with about Ba: Ca = 0.5: 0.5 in the chemical formula. Electron probe microanalysis results helped us reach the sample with Ba: Ca: Zn: Fe = 0.52: 0.48: 0.78: 10.73, demonstrating the highest magnetization of 131.0 A<inline-formula><tex-math>$cdot$</tex-math></inline-formula> m<inline-formula><tex-math>$^{2}$</tex-math></inline-formula>/kg at 1.8 K. Our findings suggest the magnetically optimal nature of this composition for Ca-substituted Ba-based W-type ferrite. This investigation contributes to understanding Ba-Ca-based W-type hexaferrite and provides a foundation for future exploration and optimization of its magnetic properties.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"16 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036958","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

Detection of GDF15 Protein Using Ultrabroadband Ferromagnetic Resonance of Magnetic Nanoparticles 磁性纳米粒子超宽带铁磁共振检测GDF15蛋白

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-07-24 DOI: 10.1109/LMAG.2025.3592474

Shin Yabukami;Ryoya Masui;Toru Murayama;Junichi Honda;Loi Tonthat;Kazuhiko Okita;Akihiro Kuwahata;Takaaki Abe

引用次数: 0

Simple and Rapid Controlling Method of Magnetic Anisotropy and Its Application to Thin-Film Magnetoimpedance Elements 磁各向异性的简单快速控制方法及其在薄膜磁阻抗元件中的应用

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-07-18 DOI: 10.1109/LMAG.2025.3590624

Hiroaki Kikuchi

引用次数: 0

A Physics-Based Circuit Model for Magnetic Tunnel Junctions 基于物理的磁隧道结电路模型

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-06-06 DOI: 10.1109/LMAG.2025.3577475

Steven Louis;Hannah Bradley;Artem Litvinenko;Vasyl Tyberkevych

引用次数: 0

Method to Suppress Polar Kerr Signal in a Longitudinal Magneto-Optic Kerr Effect Measurement 纵向磁光克尔效应测量中抑制极性克尔信号的方法

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-06-06 DOI: 10.1109/LMAG.2025.3577473

Ryan W. Greening;Elyssa D. DeVisscher;Xin Fan

{"title":"Method to Suppress Polar Kerr Signal in a Longitudinal Magneto-Optic Kerr Effect Measurement","authors":"Ryan W. Greening;Elyssa D. DeVisscher;Xin Fan","doi":"10.1109/LMAG.2025.3577473","DOIUrl":"https://doi.org/10.1109/LMAG.2025.3577473","url":null,"abstract":"The magneto-optical Kerr effect (MOKE) is a convenient technique to study the magnetization of thin films. However, both polar and longitudinal MOKE responses contribute to the total Kerr response in a typical longitudinal MOKE measurement. Here, we present a simple optical technique to suppress the polar MOKE response in the oblique angle incidence by exploiting differences between polar and longitudinal MOKE responses upon double reflection from the sample. By using a mirror to reflect the beam and by selectively using a quarter-wave plate, the polar or longitudinal MOKE signals can be suppressed and, therefore, studied separately using the same oblique experimental setup. To demonstrate the feasibility of this technique, we use an out-of-plane magnetized Pt/Co/Pt film and a Pt/Co/Cu/NiFe heterostructure with both in-plane and out-of-plane magnetization. We show that the polar MOKE of the CoPt film can be suppressed by a factor of 6 compared to a conventional MOKE measurement. By accounting for birefringence, we further reduce the polar MOKE response in a longitudinal MOKE measurement of the Pt/Co/Cu/NiFe film by over 160 times compared to a conventional oblique-angle MOKE measurement.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"16 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597698","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

Effects of Ta Buffer Layer on Structural and Magnetic Properties of Sputtered Ni2FeAl Ta缓冲层对溅射Ni2FeAl结构和磁性能的影响

IF 1.1 4区物理与天体物理

IEEE Magnetics Letters Pub Date : 2025-04-28 DOI: 10.1109/LMAG.2025.3564795

Aarzoo Dhull;Prashant Kumar;Vipul Sharma;Pawan S. Rana;Bijoy K. Kuanr

{"title":"Effects of Ta Buffer Layer on Structural and Magnetic Properties of Sputtered Ni2FeAl","authors":"Aarzoo Dhull;Prashant Kumar;Vipul Sharma;Pawan S. Rana;Bijoy K. Kuanr","doi":"10.1109/LMAG.2025.3564795","DOIUrl":"https://doi.org/10.1109/LMAG.2025.3564795","url":null,"abstract":"In the present investigation, we report the growth of off-stoichiometric Ni-based Heusler thin films of different thicknesses (6–30 nm) on a Si (100) substrate by radio frequency sputtering at 300 °C. We have used an indigenously prepared target comprising thin sheets of Ni, Fe, and Al in specific proportions. Of all the Heusler alloys, Ni2FeAl is the least researched alloy that may offer immense possibilities in developing spin-based devices. The Ni55Fe14Al31 films crystallize into the A2 phase as confirmed by the diffraction pattern. With the increase in the thickness of films, surface roughness improves followed by an increase in saturation magnetization (<italic>MS). Further, we have explored the effect of Ta buffer on the static and dynamic magnetic behavior of films and compared it with unbuffered films. The Ta buffer layer significantly impacts the surface morphology of the films. The in-plane magnetic hysteresis loops indicate higher <italic>MS with Ta buffer. Dynamic magnetization is probed via ferromagnetic resonance technique over a broad band of microwave frequencies and has been quantified in terms of Gilbert damping constant (α). The Ta buffer reduces the Gilbert damping constant from 10.1 × 10−3 to 8.4 × 10−3 in 30 nm thick films.","PeriodicalId":13040,"journal":{"name":"IEEE Magnetics Letters","volume":"16 ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314835","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