Pub Date : 2026-01-30DOI: 10.1109/TMAG.2026.3655707
{"title":"IEEE Magnetics Society Information","authors":"","doi":"10.1109/TMAG.2026.3655707","DOIUrl":"https://doi.org/10.1109/TMAG.2026.3655707","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 2","pages":"C2-C2"},"PeriodicalIF":1.9,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11369242","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146082293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1109/TMAG.2025.3650089
{"title":"IEEE Magnetics Society Distinguished Lecturers for 2026–2027","authors":"","doi":"10.1109/TMAG.2025.3650089","DOIUrl":"https://doi.org/10.1109/TMAG.2025.3650089","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 2","pages":"1-3"},"PeriodicalIF":1.9,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11369240","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146082291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1109/TMAG.2026.3659540
{"title":"TechRxiv: Share Your Preprint Research with the World!","authors":"","doi":"10.1109/TMAG.2026.3659540","DOIUrl":"https://doi.org/10.1109/TMAG.2026.3659540","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 2","pages":"1-1"},"PeriodicalIF":1.9,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11369412","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146082309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This work studies a magneto-optical surface plasmon resonance (MOSPR) sensor design that uses the photonic spin Hall effect (PSHE) concept, including cerium-substituted yttrium iron garnet (CeYIG) and graphene to allow for very sensitive detection of magnetic fields at 632.8 nm. When subjected to a magnetic field, the CeYIG layer exhibits anisotropic optical behavior, explained by a permittivity tensor with nonzero off-diagonal components, thereby inducing magneto-optical (MO) activity. The magnetization is oriented along the $z$ -axis, normal to the sensor surface. Notably, the proposed design achieves an extraordinary transverse spin-dependent shift (SDS) of approximately 237.93 $mu$ m with the external orbital angular momentum (EOAM)-based centroid shift of 0.508 $mu$ m at resonance angle. This enhancement has enabled the MOSPR sensor to use as an ultra-sensitive PSHE-based magnetometer, with a maximal sensitivity of 11258.36 $mu$ m/RIU at a refractive index (RI) of 1.1 for detecting minute RI variations in the sensing medium (SM). The proposed MOSPR sensor, performance enhanced by the integration of CeYIG and graphene with PSHE, demonstrates the importance of this sensor for next-generation MO sensing devices.
{"title":"Highly Sensitive Magneto-Optical SPR Sensor Based on the Photonic Spin Hall Effect With CeYIG and Graphene","authors":"Saumya Pandey;Harshit Shukla;Vimal Mishra;Sarika Pal;Yogendra Kumar Prajapati;Alka Verma","doi":"10.1109/TMAG.2025.3650609","DOIUrl":"https://doi.org/10.1109/TMAG.2025.3650609","url":null,"abstract":"This work studies a magneto-optical surface plasmon resonance (MOSPR) sensor design that uses the photonic spin Hall effect (PSHE) concept, including cerium-substituted yttrium iron garnet (CeYIG) and graphene to allow for very sensitive detection of magnetic fields at 632.8 nm. When subjected to a magnetic field, the CeYIG layer exhibits anisotropic optical behavior, explained by a permittivity tensor with nonzero off-diagonal components, thereby inducing magneto-optical (MO) activity. The magnetization is oriented along the <inline-formula> <tex-math>$z$ </tex-math></inline-formula>-axis, normal to the sensor surface. Notably, the proposed design achieves an extraordinary transverse spin-dependent shift (SDS) of approximately 237.93 <inline-formula> <tex-math>$mu$ </tex-math></inline-formula>m with the external orbital angular momentum (EOAM)-based centroid shift of 0.508 <inline-formula> <tex-math>$mu$ </tex-math></inline-formula>m at resonance angle. This enhancement has enabled the MOSPR sensor to use as an ultra-sensitive PSHE-based magnetometer, with a maximal sensitivity of 11258.36 <inline-formula> <tex-math>$mu$ </tex-math></inline-formula>m/RIU at a refractive index (RI) of 1.1 for detecting minute RI variations in the sensing medium (SM). The proposed MOSPR sensor, performance enhanced by the integration of CeYIG and graphene with PSHE, demonstrates the importance of this sensor for next-generation MO sensing devices.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 2","pages":"1-9"},"PeriodicalIF":1.9,"publicationDate":"2026-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146082289","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}
Pub Date : 2025-12-30DOI: 10.1109/TMAG.2025.3649481
Takenori Atsumi;Shota Yabui
Modern hard disk drives (HDDs) employ triple-stage actuators (TSAs) to meet demanding data storage requirements. The control systems for these actuators are typically designed with a decoupled structure to simplify the control design process. However, a significant challenge remains: achieving robust performance against system perturbations while maintaining this decoupled structure. This article proposes a novel control design method that addresses this issue. Our approach allows for the design of a robust control system for TSA systems without the need for complex, unintuitive algorithms, or cumbersome design procedures, which are often difficult to implement in an industrial setting. By applying a robust loop-shaping framework, specifically, the robust controller bode (RCBode) plot, within the domain of classical control theory, our proposed method enables designers to achieve high-performance robust control simply by shaping a filter based on clear guidelines on a Bode plot, thereby avoiding complex modeling and intricate mathematical derivations. The effectiveness of the proposed method is validated through simulations based on the HDD benchmark problem, demonstrating excellent robust performance against disturbances encountered in data center environments.
{"title":"Robust Loop-Shaping Method for Decoupled Control Systems of HDD Triple-Stage Actuators Using RCBode Plot","authors":"Takenori Atsumi;Shota Yabui","doi":"10.1109/TMAG.2025.3649481","DOIUrl":"https://doi.org/10.1109/TMAG.2025.3649481","url":null,"abstract":"Modern hard disk drives (HDDs) employ triple-stage actuators (TSAs) to meet demanding data storage requirements. The control systems for these actuators are typically designed with a decoupled structure to simplify the control design process. However, a significant challenge remains: achieving robust performance against system perturbations while maintaining this decoupled structure. This article proposes a novel control design method that addresses this issue. Our approach allows for the design of a robust control system for TSA systems without the need for complex, unintuitive algorithms, or cumbersome design procedures, which are often difficult to implement in an industrial setting. By applying a robust loop-shaping framework, specifically, the robust controller bode (RCBode) plot, within the domain of classical control theory, our proposed method enables designers to achieve high-performance robust control simply by shaping a filter based on clear guidelines on a Bode plot, thereby avoiding complex modeling and intricate mathematical derivations. The effectiveness of the proposed method is validated through simulations based on the HDD benchmark problem, demonstrating excellent robust performance against disturbances encountered in data center environments.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 2","pages":"1-10"},"PeriodicalIF":1.9,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146082312","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}
Pub Date : 2025-12-29DOI: 10.1109/TMAG.2025.3645176
{"title":"IEEE Magnetics Society Information","authors":"","doi":"10.1109/TMAG.2025.3645176","DOIUrl":"https://doi.org/10.1109/TMAG.2025.3645176","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"62 1","pages":"C2-C2"},"PeriodicalIF":1.9,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11318117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145847831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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