Regensburg 2013 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 50: Poster II
MA 50.1: Poster
Freitag, 15. März 2013, 10:30–13:30, Poster D
Nanoscale sensing of a magnetic topology — •Alexander Gerstmayr1, Raphael Bindel2, Dominik Reitzle3, Marcus Liebmann2, Markus Morgenstern2, Berndt Koslowski3, and Fedor Jelezko1 — 1Institut für Quantenoptik, Universität Ulm, Deutschland — 2Institut IIb, RWTH Aachen, Deutschland — 3Festkörperphysik, Universität Ulm, Deutschland
For years, the nitrogen-vacancy (NV) center in diamond has been in the spotlight for studies of electron spin coupling. Also the coupling to other near color centers in diamond was studied recently. We will explore single atom control techniques for sensing external spins and imaging them using scanning probe microscopy. External magnetic fields cause a frequency shift of the electron spin resonance of our NV-center, which is detectable by Optically Detected Magnetic Resonance (ODMR). For even higher magnetic sensitivity (down to few nT of AC field), pulsed experiments are performed. One single NV-center located in a diamond tip is the main part of the future Atomic Force- and Magnetic Resonance Microscope (AFM/MRM). Due to the possibility of single-spin detection in NV-centers under ambient conditions, this combination of AFM and MRM is planned to work even at room temperature as well as also at low temperature (4 K). We will be able to locate single spins on the nanoscale.