Journal article

Magneto-optical imaging of thin magnetic films using spins in diamond

David A Simpson, Jean-Philippe Tetienne, Julia M McCoey, Kumaravelu Ganesan, Liam T Hall, Steven Petrou, Robert E Scholten, Lloyd CL Hollenberg

SCIENTIFIC REPORTS | NATURE PUBLISHING GROUP | Published : 2016

Abstract

Imaging the fields of magnetic materials provides crucial insight into the physical and chemical processes surrounding magnetism, and has been a key ingredient in the spectacular development of magnetic data storage. Existing approaches using the magneto-optic Kerr effect, x-ray and electron microscopy have limitations that constrain further development, and there is increasing demand for imaging and characterisation of magnetic phenomena in real time with high spatial resolution. Here we show how the magneto-optical response of an array of negatively-charged nitrogen-vacancy spins in diamond can be used to image and map the sub-micron stray magnetic field patterns from thin ferromagnetic fi..

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Grants

Awarded by Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology


Awarded by Australian Research Council


Awarded by Australia Research Council


Awarded by NHMRC


Funding Acknowledgements

The authors acknowledge fruitful discussions with Vincent Jacques, Joo-Von Kim and Steven Prawer. This research was supported in part by the Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology (Project number CE110001027). This work was also supported by the University of Melbourne through the Centre for Neural Engineering and the Centre for Neuroscience. L.C.L.H acknowledges the support of the Australian Research Council Laureate Fellowship Scheme (FL130100119). R.E.S acknowledges support from the Australia Research Council under the Discovery Project scheme (DP150101704). S.P acknowledges the support from the NHMRC fellowship scheme (1005050).