Magnetic imaging of a single ferromagnetic nanowire using diamond atomic sensors
- Authors
- Lee, Myeongwon; Jang, Bumjin; Yoon, Jungbae; Mathpal, Mohan C.; Lee, Yuhan; Kim, Chulki; Pane, Salvador; Nelson, Bradley J.; Lee, Donghun
- Issue Date
- Jul-2018
- Publisher
- Institute of Physics Publishing
- Keywords
- diamond NV center; ferromagnetic nanowire; magnetic field sensing and imaging
- Citation
- Nanotechnology, v.29, no.40, pp 1 - 8
- Pages
- 8
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Nanotechnology
- Volume
- 29
- Number
- 40
- Start Page
- 1
- End Page
- 8
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/114382
- DOI
- 10.1088/1361-6528/aad2fe
- ISSN
- 0957-4484
1361-6528
- Abstract
- Recent advances in nanorobotic manipulation of ferromagnetic nanowires bring new avenues for applications in the biomedical area, such as targeted drug delivery, diagnostics or localized surgery. However, probing a single nanowire and monitoring its dynamics remains a challenge since it demands high precision sensing, high-resolution imaging, and stable operations in fluidic environments. Here, we report on a novel method of imaging and sensing magnetic fields from a single ferromagnetic nanowire with an atomic-scale sensor in diamond, i.e. diamond nitrogen-vacancy (NV) defect center. The distribution of static magnetic fields around a single Co nanowire is mapped out by spatially distributed NV centers and the obtained image is further compared with numerical simulation for quantitative analysis. DC field measurements such as continuous-wave ODMR and Ramsey sequence are used in the paper and sub Gauss level of field sensing is demonstrated. By imaging magnetic fields at a single nanowire level, this work represents an important step toward tracking and probing of ferromagnetic nanowires in biomedical applications. © 2018 IOP Publishing Ltd.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF ROBOT ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/114382)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.