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

Jungbae Yoon; Jun Hwan Moon; Jugyeong Chung; Yu Jin Kim; Kihwan Kim; Hee Seong Kang; Yoo Sang Jeon; Eunsoo Oh; Sun Hwa Lee; Kihoon Han; Dongmin Lee; Chul‐Ho Lee; Young Keun Kim; Donghun Lee

doi:10.1002/smll.202304129

journal article·2023-10

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

Jungbae Yoon, Jun Hwan Moon, Jugyeong Chung, Yu Jin Kim, Kihwan Kim, Hee Seong Kang, Yoo Sang Jeon, Eunsoo Oh, Sun Hwa Lee, Kihoon Han, Dongmin Lee, Chul‐Ho Lee, Young Keun Kim, Donghun Lee

Small· Volume 19· Issue 40

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Source abstract

Abstract

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.

Source: crossref · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Diamond and Carbon-based Materials Research · Magnetic properties of thin films · Characterization and Applications of Magnetic Nanoparticles

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics Korea University Seoul 02841 Republic of Korea

Department of Materials Science and Engineering Korea University Seoul 02841 Republic of Korea

Institute for High Technology Materials and Devices Korea University Seoul 02841 Republic of Korea

KU‐KIST Graduate School of Converging Science and Technology Korea University Seoul 02841 Republic of Korea

Center for Hydrogen∙Fuel Cell Research Korea Institute of Science and Technology Seoul 02792 Republic of Korea

Center for Multidimensional Carbon Materials (CMCM) Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea

BK21 Graduate Program Department of Biomedical Sciences Korea University College of Medicine Seoul 02841 Republic of Korea

Department of Neuroscience Korea University College of Medicine Seoul 02841 Republic of Korea

Department of Anatomy Korea University College of Medicine Seoul 02841 Republic of Korea

Department of Electrical and Computer Engineering Seoul National University Seoul 08826 Republic of Korea

Funding

National Research Foundation of Korea · Institute for Basic Science

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