Regensburg 2025 – scientific programme
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O: Fachverband Oberflächenphysik
O 20: Poster Scanning Probe Microscopy: Light-Matter Interactions at the Atomic Scale
O 20.6: Poster
Monday, March 17, 2025, 18:00–20:00, P2
Scanning Quantum Microscopy for Emergent Phases of Matter — •Ruoming Peng1, Sreehari Jayaram1, Malik Lenger1, King Cho Wong1, Xuankai Zhou1, Yan Tug Kong1, and Joerg Wrachtrup1,2 — 13. Physikalisches Institut, University of Stuttgart, 70569 Stuttgart, Germany — 2Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
Scanning quantum microscopy using NV centers in diamond enables direct visualization of condensed matter phenomena. Applying this technique, we uncover the emergence of a super-Moiré magnetic texture in twisted double bilayer CrI3, distinct from the geometric Moiré periodicity at small twist angles. Additionally, we investigate vortex dynamics in thin-layer 2H-NbSe2, revealing vortex melting behaviors during different thermal cycling and unconventional magnetic noise arising from the vortex dynamics. Our findings highlight the strong capability of scanning quantum microscopy to unravel nanoscale magnetic interactions and dynamic phases in 2D materials.
Keywords: NV center; Quantum Sensing; 2D magntism; 2D superconductor