| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2023-02-25 |
| タイトル |
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タイトル |
Quantitatively probing the magnetic behavior of individual nanoparticles by an AC field-modulated magnetic force microscopy |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 作成者 |
Li, Xiang
Lu, Wei
Song, Yiming
Wang, Yuxin
Chen, Aiying
Yan, Biao
Yoshimura, Satoru
Saito, Hitoshi
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| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Despite decades of advances in magnetic imaging, obtaining direct, quantitative information with nanometer scale spatial resolution remains an outstanding challenge. Current approaches, for example, Hall micromagnetometer and nitrogen-vacancy magnetometer, are limited by highly complex experimental apparatus and a dedicated sample preparation process. Here we present a new AC field-modulated magnetic force microscopy (MFM) and report the local and quantitative measurements of the magnetic information of individual magnetic nanoparticles (MNPs), which is one of the most iconic objects of nanomagnetism. This technique provides simultaneously a direct visualization of the magnetization process of the individual MNPs, with spatial resolution and magnetic sensitivity of about 4.8 nm and 1.85 x 10(-20) A m(2), respectively, enabling us to separately estimate the distributions of the dipolar fields and the local switching fields of individual MNPs. Moreover, we demonstrate that quantitative magnetization moment of individual MNPs can be routinely obtained using MFM signals. Therefore, it underscores the power of the AC field-modulated MFM for biological and biomedical applications of MNPs and opens up the possibility for directly and quantitatively probing the weak magnetic stray fields from nanoscale magnetic systems with superior spatial resolution. |
|
言語 |
en |
| 出版タイプ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
en : SCIENTIFIC REPORTS
巻 6,
発行日 2016
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| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2045-2322 |
| 出版者 |
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出版者 |
Nature Research |
|
言語 |
en |
| 関連情報 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1038/srep22467 |
| 権利情報 |
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権利情報 |
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
riA_2022_34.pdf (1.6 MB)
