Platform
Single-spin and widefield nitrogen-vacancy magnetometers in diamond.
← All research themes
01 · Quantum sensing
Quantum Probes for Condensed Matter
A quantum sensor placed nanometres from a material can turn weak local fields into quantitative images of collective behaviour.
The question
What becomes visible when the probe is part of the system?
Many of the most interesting states of matter are defined by textures, fluctuations or dynamics that conventional probes average away. We develop diamond quantum microscopy to see these signatures locally, while disturbing the material as little as possible.
How we approach it
Platform, measurement, target
Measurement
Static fields, magnetic noise and driven dynamics across nanometre-to-device length scales.
Scientific target
Topological textures, antiferromagnets, two-dimensional magnets and hybrid quantum materials.
Current directions
Questions in motion
These project areas evolve as experiments and collaborations develop.
Vector magnetic microscopy
Reconstructing quantitative field and magnetisation maps from complementary quantum-sensor views.
Noise as a signal
Using spin relaxation and correlation spectroscopy to reveal fluctuating magnetic modes.
Dynamics in real space
Imaging how domains, waves and defects move under fields, currents and coherent drive.
Selected reading
Related publications
ACS Applied Electronic Materials · 2024
Evidencing Dissipation Dilution in Large-Scale Arrays of Single-Layer WSe₂ Mechanical Resonators
M. R. Pitts, M. S. G. Feuer, A. K. C. Tan, et al.
Read paper ↗Nature Materials · 2024Revealing Emergent Magnetic Charge in an Antiferromagnet with Diamond Quantum Magnetometry
A. K. C. Tan, H. Jani, M. Högen, L. Stefan, et al.
Read paper ↗ACS Nano · 2023Imaging Nucleation and Propagation of Pinned Domains in Few-Layer Fe₅₋ₓGeTe₂
M. Högen, R. Fujita, A. K. C. Tan, A. A. Geim, et al.
Read paper ↗Nanoscale · 2023Intrinsic Giant Magnetoresistance due to Exchange-Bias-Type Effects at the Surface of Single-Crystalline NiS₂ Nanoflakes
R. Hartmann, M. Högen, D. Lignon, A. K. C. Tan, et al.
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