Dresden 2014 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 19: Poster I

MA 19.25: Poster

Dienstag, 1. April 2014, 13:00–15:30, P1

Nanoscale magnetic field sensing using single NV defects — •Vinaya Kumar Kavatamane, Sri Ranjini Arumugam, Andrii Lazariev, and Gopalakrishnan Balasubramanian — Max Planck Research Group 'Nanoscale Spin Imaging', Max Planck Institute for Biophysical Chemistry, Goettingen 37077, Germany

Nitrogen-vacancy (NV) color centers in diamond are atomic sized point defects which enable sensing and imaging of external magnetic fields at nanoscale without requiring low temperatures for their operation. A nanodiamond crystal hosting a single NV center attached to the scanning probe is used as a nanoscale magnetometer. The NV spin states are addressed by microwaves and the optically detected magnetic resonance spectra of the NV center enables the sensing of the external weak magnetic fields. We will present some preliminary results on measuring magnetic fields at nanometer length scales.