Momentum space toroidal moment in a photonic metamaterial
The appearance of toroidal multipolar moments in electrodynamics interrogates the question for their existence in Berry curvature, which can be seen as the “magnetic field” in the momentum space. Here, the authors observe 3D vortex distributions in the Berry curvature within a photonic metamaterial....
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2021-03-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-021-22063-w |