Journal article

Magnetic noise from ultrathin abrasively deposited materials on diamond

Scott E Lillie, David A Broadway, Nikolai Dontschuk, Ali Zavabeti, David A Simpson, Tokuyuki Teraji, Torben Daeneke, Lloyd CL Hollenberg, Jean-Philippe Tetienne

Physical Review Materials | American Physical Society | Published : 2018

Abstract

Sensing techniques based on the negatively charged nitrogen-vacancy (NV) center in diamond have emerged as promising candidates to characterize ultrathin and 2D materials. An outstanding challenge to this goal is isolating the contribution of 2D materials from undesired contributions arising from surface contamination and changes to the diamond surface induced by the sample or transfer process. Here we report on such a scenario, in which the abrasive deposition of trace amounts of materials onto a diamond gives rise to a previously unreported source of magnetic noise. By deliberately scratching the diamond surface with macroscopic blocks of various metals (Fe, Cu, Cr, Au), we are able to for..

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Grants

Awarded by Australian Research Council (ARC)


Awarded by "Nanotechnology Platform Project" of MEXT, Japan


Awarded by CREST of JST, Japan


Funding Acknowledgements

We thank Liam Hall and Alastair Stacey for useful discussions. This work was supported by the Australian Research Council (ARC) through Grants No. DE170100129, No. CE170100012, and No. FL130100119. J.-P.T. acknowledges support from the University of Melbourne through an Early Career Researcher Grant. This work was performed in part at the Materials Characterization and Fabrication Platform (MCFP) at the University of Melbourne and the Victorian Node of the Australian National Fabrication Facility (ANFF). D.A.B. and S.E.L. are supported by an Australian Government Research Training Program Scholarship. T.T. acknowledges the support of Grants-in-Aid for Scientific Research (Grants No. 15H03980, No. 26220903, and No. 16H06326), the "Nanotechnology Platform Project" of MEXT, Japan, and CREST (Grant No. JPMJCR1773) of JST, Japan.