Dataset for the article "Microwave-free imaging magnetometry with nitrogen-vacancy centers in nanodiamonds at near-zero field"

This repository contains the dataset obtained from a wide-field, microwave-free imaging magnetometer utilizing NV centers in nanodiamonds by exploiting the cross-relaxation feature near zero magnetic fields under ambient conditions without applying microwaves. The data was taken between October 2023 and March 2024. Please consult the README.md file for further information. We recommend you read the article (PhysRevApplied.23.034001) for more information on the data analysis methods and results. DOI: 10.1103/PhysRevApplied.23.034001 URL: https://link.aps.org/doi/10.1103/PhysRevApplied.23.034001 Acknowledgments (updated): This work was supported by the European Commission’s Horizon Europe Framework Program under the Research and Innovation Action MUQUABIS GA No. 101070546, by the German Federal Ministry of Education and Research (BMBF) within the Quantumtechnologien program (DIAQNOS, Project No. 13N16455) and by the German DFG, Project SFB 1552 “Defekte und Defektkontrolle in weicher Materie.” The study was carried out using research infrastructure purchased with the funds of the European Union in the framework of the Smart Growth Operational Programme, Measure 4.2; Grant No. POIR.04.02.00-00-D001/20, “ATOMIN 2.0 – ATOMic scale science for the INnovative economy”. This research was funded in part by the National Science Centre, Poland, Grant No. 2020/39/I/ST3/02322 and Grant No. 2023/05/Y/ST3/00135 within the QuantERA II Programme that has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 101017733. For the purpose of Open Access, the author has applied a CC-BY public copyright licence to any Author Accepted Manuscript (AAM) version arising from this submission.