Research
Spin order steers a light–matter condensate
The Brief
- In the layered magnet CrSBr, reorienting the spins with a modest magnetic field shifts the colour of a light-matter condensate by more than 10 meV.
- The result was published in Nature Materials on 9 November 2026 (doi:10.1038/s41563-026-02790-5).
- The work gives a magnetic control knob over light-matter condensates.
Why it matters
It shows that spin order in a magnet can tune the optical energy of a light-matter condensate with a modest field, a possible route to magnetically controlled optical devices.
Who’s affected
- condensed-matter and materials physicists
- researchers working on polaritons and optoelectronics
- #spintronics
- #condensates
- #magnetism
- #polaritons
- #2d-materials
Nature Materials, Published online: 09 November 2026; doi:10.1038/s41563-026-02790-5 Light–matter condensates get a magnetic control knob. In the layered magnet CrSBr, reorienting the spins with a modest field shifts the condensate’s colour by more than 10 meV.
Timeline
Published online in Nature Materials
nature.com
Spin order steers a light–matter condensate