Dresden 2026 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

TT: Fachverband Tiefe Temperaturen

TT 24: Focus Session: Quantum Sensing with Solid State Spin defects I (joint session TT/MA)

TT 24.1: Topical Talk

Dienstag, 10. März 2026, 09:30–10:00, HSZ/0003

Exploring nanoscale van der Waals magnetism using single spin microscopy — •Patrick Maletinsky — Basel University, Departement of Physics, Klingelbergstrasse 82, 4056 Basel

Atomically thin van der Waals (vdW) magnets provide a unique platform to explore magnetism in the ultimate two-dimensional limit [1]. Their weak interlayer coupling, tunable anisotropy, and gate sensitivity enable engineering of magnetic order and spin textures at the atomic scale. However, their small magnetic moments, nanoscale domains, and complex coupling make them difficult to probe experimentally [2].

I will present recent progress in understanding vdW magnetism using single-spin magnetometry based on nitrogen-vacancy centers in diamond. This quantum-sensing technique enables nanoscale imaging of magnetic order, phase transitions in few-layer systems under ambient and cryogenic conditions. I will show how this approach reveals microscopic mechanisms of magnetism in layered materials and uncovers phenomena such as "lateral exchange bias" and spin-reorientation transitions in ultrathin magnets [3,4].

I will conclude with an outlook on how quantum sensors can advance the study of correlated and topological magnetism in vdW materials [5], and how combining them with strain, gating, or optical control may enable designer spintronic and magnonic systems.

[1] Science 363, 706; Nat. Nanotechnol. 14, 408 [2] Science 364, 973 [3] Nat. Commun. 15, 6005 [4] Nat. Commun. 16, 9725 [5] Nat. Rev. Phys. 6, 753

Keywords: Quantum Sensing; van der Waals magnets; Magnetism; Spintronics