Berlin 2024 – wissenschaftliches Programm

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 1: Tutorial: Exploring Ferroic Materials: From Modelling to Imaging Techniques (joint session KFM/TUT)

KFM 1.3: Tutorium

Sonntag, 17. März 2024, 17:15–17:45, H 1028

Magnetic imaging with solid-state spin defects — •Vincent Jacques — Laboratoire Charles Coulomb, CNRS and Uni. Montpellier, France

Experimental methods enabling the optical detection of single spins in the solid-state, which were initially developed for quantum information science, open new avenues for the development of highly sensitive quantum sensors. In this context, the electronic spin of a single nitrogen-vacancy (NV) defect in diamond can be used as an atomic-sized magnetometer, providing an unprecedented combination of spatial resolution and magnetic sensitivity, even under ambient conditions. In this talk, I will first introduce the principle of scanning-NV magnetometry and discuss how it can be used as a powerful tool for exploring the physics of ferroic materials. I will then discuss recent efforts in researching alternative material platforms that could expand the range of quantum sensing functionalities offered by diamond, with a focus on hexagonal boron nitride.

Keywords: Quantum sensing; NV defect in diamond; Spin textures in antiferromagnets; 2D materials