@article{619400d27e5e4a7a80bf45fe35ffafc4,
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 = "Funding Information: This work is supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) ( NRF-2021R1F1A1049355 ) and ( NRF-2019M3E4A1080232 ), and the MSIT(Ministry of Science and ICT), Korea , under the ITRC(Information Technology Research Center) support program ( IITP-2021-2020-0-01606 ) supervised by the IITP(Institute of Information & Communications Technology Planning & Evaluation). T. Choi and A. Heinrich acknowledge the support from the Institute for Basic Science ( IBS-R027-D1 ). 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",
publisher = "Elsevier",
}