Imaging oersted field around current flowing wire based on a diamond scanning magnetometer

Yuhan Lee; Myeongwon Lee; Junhyeon Jo; Seokmin Lee; Jung Woo Yoo; Taeyoung Choi; Andreas Heinrich; Donghun Lee

doi:10.1016/j.cap.2021.12.001

Imaging oersted field around current flowing wire based on a diamond scanning magnetometer

Yuhan Lee
, Myeongwon Lee
, Junhyeon Jo
, Seokmin Lee
, Jung Woo Yoo
, Taeyoung Choi
, Andreas Heinrich
, Donghun Lee^*

^*Corresponding author for this work

Electronic Materials Engineering

Korea University
Ulsan National Institute of Science and Technology
Korea Basic Science Institute
Ewha Womans University

Research output: Contribution to journal › Journal article › peer-review

4 Scopus citations

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.

Original language	English
Pages (from-to)	59-63
Number of pages	5
Journal	Current Applied Physics
Volume	34
DOIs	https://doi.org/10.1016/j.cap.2021.12.001
State	Published - 2022.02

Keywords

Diamond NV center
Imaging current flow
Scanning magnetometer

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10.1016/j.cap.2021.12.001

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@article{188868067c264e08ae2883bcdb48bc77,

title = "Imaging oersted field around current flowing wire based on a diamond scanning magnetometer",

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.",

keywords = "Diamond NV center, Imaging current flow, Scanning magnetometer",

author = "Yuhan Lee and Myeongwon Lee and Junhyeon Jo and Seokmin Lee and Yoo, \{Jung Woo\} and Taeyoung Choi and Andreas Heinrich and Donghun Lee",

note = "Publisher Copyright: {\textcopyright} 2021 Korean Physical Society",

year = "2022",

month = feb,

doi = "10.1016/j.cap.2021.12.001",

language = "English",

volume = "34",

pages = "59--63",

journal = "Current Applied Physics",

issn = "1567-1739",

}

TY - JOUR

T1 - Imaging oersted field around current flowing wire based on a diamond scanning magnetometer

AU - Lee, Yuhan

AU - Lee, Myeongwon

AU - Jo, Junhyeon

AU - Lee, Seokmin

AU - Yoo, Jung Woo

AU - Choi, Taeyoung

AU - Heinrich, Andreas

AU - Lee, Donghun

PY - 2022/2

Y1 - 2022/2

N2 - 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.

AB - 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.

KW - Diamond NV center

KW - Imaging current flow

KW - Scanning magnetometer

UR - https://www.scopus.com/pages/publications/85121230463

U2 - 10.1016/j.cap.2021.12.001

DO - 10.1016/j.cap.2021.12.001

M3 - Journal article

AN - SCOPUS:85121230463

SN - 1567-1739

VL - 34

SP - 59

EP - 63

JO - Current Applied Physics

JF - Current Applied Physics

ER -

Imaging oersted field around current flowing wire based on a diamond scanning magnetometer

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Keywords

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