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

Department of Physics

Research output: Contribution to journal › Article › peer-review

2 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 - Feb 2022

Bibliographical note

Publisher Copyright:
© 2021 Korean Physical Society

Keywords

Diamond NV center
Imaging current flow
Scanning magnetometer

Access to Document

10.1016/j.cap.2021.12.001

Cite this

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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",

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

language = "English",

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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.

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KW - Scanning magnetometer

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SP - 59

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JO - Current Applied Physics

JF - Current Applied Physics

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

Abstract

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Keywords

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