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자연과학대학
물리학전공
Journal papers
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Imaging oersted field around current flowing wire based on a diamond scanning magnetometer
Title
Imaging oersted field around current flowing wire based on a diamond scanning magnetometer
Authors
Lee Y.
;
Lee M.
;
Jo J.
;
Lee S.
;
Yoo J.-W.
;
Choi T.
;
Heinrich A.
;
Lee D.
Ewha Authors
Andreas Heinrich
;
최태영
SCOPUS Author ID
Andreas Heinrich
; 최태영
Issue Date
2022
Journal Title
Current Applied Physics
ISSN
1567-1739
Citation
Current Applied Physics vol. 34, pp. 59 - 63
Keywords
Diamond NV center
;
Imaging current flow
;
Scanning magnetometer
Publisher
Elsevier B.V.
Indexed
SCIE; SCOPUS; KCI
Document Type
Article
Abstract
We demonstrate imaging current flow in a transport device by measuring the current-induced Oersted field. A diamond scanning magnetometer that hosts a single nitrogen-vacancy (NV) center at the tip apex is used to obtain the image. We fabricate a U-shape of Pt wire and study evolution of the Oersted field as the current continuously changes its direction along the wire. We find a good agreement between the obtained results and the simulated images based on the Biot-Savart law. In order to show the capability of imaging different field components, we perform the same experiment but with two different axes of the NV center. This work provides a novel imaging method of the current profile and can be applied to various transport experiments. © 2021 Korean Physical Society
DOI
10.1016/j.cap.2021.12.001
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