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SYNV: Symposium Potentials for NVs sensing magnetic phases, textures and excitations

SYNV 1: Potentials for NVs sensing magnetic phases, textures and excitations

SYNV 1.4: Invited Talk

Monday, September 27, 2021, 15:15–15:45, Audimax 2

Nanoscale imaging of spin textures with single spins in diamond — •Patrick Maletinsky — Department of Physics, Basel University, Switzerland

Quantum two-level systems offer attractive opportunities for sensing and imaging at the nanoscale. Since its inception, this idea [1] has advanced from proof of concept [2] to a mature quantum technology [3], which finds applications in condensed matter physics, materials science and engineering. In this talk, I will discuss our approach to realizing such quantum sensors [4] and highlight some particularly rewarding applications in the imaging of nanoscale spin textures.

Specifically, I will discuss how we employ single electronic spins in diamond for nanoscale probing of antiferromagnetic systems [5,6] and high-resolution imaging of atomically thin van der Waals magnets [7]. For both, the combination of sensitivity, spatial resolution and quantitative imaging enables unprecedented insights into nanoscale domains and domain-walls down to the atomic monolayer limit.

I will conclude with an outlook of future developments of single spin magnetometers for extreme conditions, such as high magnetic fields, mK temperatures or high-frequency sensors to probe the dynamics of nanomagnetic systems.

[1] B. Chernobrod et al., J. Appl. Phys. 97, 014903 [2] G. Balasubmaranian et al., Nature 455, 644 [3] P. Appel et al., Rev. Sci. Instr. 87, 063703 [4] N. Hedrich et al. Phys. Rev. Appl. 14, 064007 [5] P. Appel et al., Nano Lett. 19, 1682 [6] N. Hedrich et al., Nature Phys. 17, 574 [7] L. Thiel et al., Science 364, 973

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