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BP: Fachverband Biologische Physik

BP 7: Poster I

BP 7.46: Poster

Monday, March 23, 2009, 17:45–20:00, P3

Biological application of atomic scale magnetometry using single defects in diamond — •Thomas Wolf, Gopalakrishnan Balasubramanian, Roman Kolesov, Fedor Jelezko, and Jörg Wrachtrup — 3. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart

Diamonds contain natural defect centres in their lattice structure known as colour centres. Electron spin states in these colour centres can be changed and measured with optical techniques at room temperature. The potential of locating one of these centres spatially on the nanometer scale with potential for sub-nm precision by using magnetic resonance techniques has been recently shown by our group and collaborators. Using small nanocrystals containing a NV-centre (nitrogen-vacancy) we intend to implement diamond as non-toxic biological marker having potential to overcome the classical resolution limit of light microscopy under physiological conditions.