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Exploring the Magnetic Properties of Individual Barcode Nanowires using Wide-Field Diamond Microscopy

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Title
Exploring the Magnetic Properties of Individual Barcode Nanowires using Wide-Field Diamond Microscopy
Author(s)
Yoon, Jungbae; Moon, Jun Hwan; Chung, Jugyeong; Kim, Yu Jin; Kim, Kihwan; Kang, Hee Seong; Jeon, Yoo Sang; Oh, Eunsoo; Sun Hwa Lee; Han, Kihoon; Lee, Dongmin; Lee, Chul-Ho; Kim, Young Keun; Lee, Donghun
Publication Date
2023-06
Journal
Small
Publisher
John Wiley and Sons Inc
Abstract
A barcode magnetic nanowire typically comprises a multilayer magnetic structure in a single body with more than one segment type. Interestingly, due to selective functionalization and novel interactions between the layers, it has attracted significant attention, particularly in bioengineering. However, analyzing the magnetic properties at the individual nanowire level remains challenging. Herein, the characterization of a single magnetic nanowire is investigated at room temperature under ambient conditions based on magnetic images obtained via wide-field quantum microscopy with nitrogen-vacancy centers in diamond. Consequently, critical magnetic properties of a single nanowire can be extracted, such as saturation magnetization and coercivity, by comparing the experimental result with that of micromagnetic simulation. This study opens up the possibility for a versatile in situ characterization method suited to individual magnetic nanowires. © 2023 Wiley-VCH GmbH.
URI
https://pr.ibs.re.kr/handle/8788114/14004
DOI
10.1002/smll.202304129
ISSN
1613-6810
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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