Magnetic noise analysis and suppression of nanocrystalline spindle-shaped magnetic shielding cylinder

Zhenkai Zhao; Xueping Xu; Wei Liu; Yi Liu; Lei Wang

doi:10.1109/TMAG.2025.3633554

Magnetic noise analysis and suppression of nanocrystalline spindle-shaped magnetic shielding cylinder

Zhenkai Zhao
, Xueping Xu^*
, Wei Liu
, Yi Liu
, Lei Wang

^*Corresponding author for this work

School of Instrumentation and Optoelectronic Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

Abstract

Nanocrystalline magnetic shields provide near-zero magnetic environments essential for the ultra-sensitive operation of spin-exchange relaxation-free (SERF) atomic magnetometers, enabling precise measurements such as magnetocardiography (MCG) and magnetoencephalography (MEG). To enhance sensitivity, this study introduces a magnetic noise (MN) model tailored for a spindle-shaped magnetic shielding cylinder (SMSC), incorporating the effects of structural anisotropy. Additionally, a segmented dynamic demagnetization method is developed, accounting for the anisotropic magnetization characteristics of nanocrystalline materials. The proposed approach effectively improves both magnetic shielding performance and noise suppression.

Original language	English
Journal	IEEE Transactions on Magnetics
DOIs	https://doi.org/10.1109/TMAG.2025.3633554
State	Accepted/In press - 2025

Keywords

Nanocrystalline
anisotropy
magnetic noise (MN)
segmented demagnetization
spindle-shaped magnetic shielding cylinder (SMSC)

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10.1109/TMAG.2025.3633554

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title = "Magnetic noise analysis and suppression of nanocrystalline spindle-shaped magnetic shielding cylinder",

abstract = "Nanocrystalline magnetic shields provide near-zero magnetic environments essential for the ultra-sensitive operation of spin-exchange relaxation-free (SERF) atomic magnetometers, enabling precise measurements such as magnetocardiography (MCG) and magnetoencephalography (MEG). To enhance sensitivity, this study introduces a magnetic noise (MN) model tailored for a spindle-shaped magnetic shielding cylinder (SMSC), incorporating the effects of structural anisotropy. Additionally, a segmented dynamic demagnetization method is developed, accounting for the anisotropic magnetization characteristics of nanocrystalline materials. The proposed approach effectively improves both magnetic shielding performance and noise suppression.",

keywords = "Nanocrystalline, anisotropy, magnetic noise (MN), segmented demagnetization, spindle-shaped magnetic shielding cylinder (SMSC)",

author = "Zhenkai Zhao and Xueping Xu and Wei Liu and Yi Liu and Lei Wang",

note = "Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

year = "2025",

doi = "10.1109/TMAG.2025.3633554",

language = "英语",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Magnetic noise analysis and suppression of nanocrystalline spindle-shaped magnetic shielding cylinder

AU - Zhao, Zhenkai

AU - Xu, Xueping

AU - Liu, Wei

AU - Liu, Yi

AU - Wang, Lei

PY - 2025

Y1 - 2025

N2 - Nanocrystalline magnetic shields provide near-zero magnetic environments essential for the ultra-sensitive operation of spin-exchange relaxation-free (SERF) atomic magnetometers, enabling precise measurements such as magnetocardiography (MCG) and magnetoencephalography (MEG). To enhance sensitivity, this study introduces a magnetic noise (MN) model tailored for a spindle-shaped magnetic shielding cylinder (SMSC), incorporating the effects of structural anisotropy. Additionally, a segmented dynamic demagnetization method is developed, accounting for the anisotropic magnetization characteristics of nanocrystalline materials. The proposed approach effectively improves both magnetic shielding performance and noise suppression.

AB - Nanocrystalline magnetic shields provide near-zero magnetic environments essential for the ultra-sensitive operation of spin-exchange relaxation-free (SERF) atomic magnetometers, enabling precise measurements such as magnetocardiography (MCG) and magnetoencephalography (MEG). To enhance sensitivity, this study introduces a magnetic noise (MN) model tailored for a spindle-shaped magnetic shielding cylinder (SMSC), incorporating the effects of structural anisotropy. Additionally, a segmented dynamic demagnetization method is developed, accounting for the anisotropic magnetization characteristics of nanocrystalline materials. The proposed approach effectively improves both magnetic shielding performance and noise suppression.

KW - Nanocrystalline

KW - anisotropy

KW - magnetic noise (MN)

KW - segmented demagnetization

KW - spindle-shaped magnetic shielding cylinder (SMSC)

UR - https://www.scopus.com/pages/publications/105022622689

U2 - 10.1109/TMAG.2025.3633554

DO - 10.1109/TMAG.2025.3633554

M3 - 文章

AN - SCOPUS:105022622689

SN - 0018-9464

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

ER -

Magnetic noise analysis and suppression of nanocrystalline spindle-shaped magnetic shielding cylinder

Abstract

Keywords

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