Scientists have directly watched angular momentum move through a crystal for the very first time — and discovered a bizarre ...

(a) The effect of permittivity and material rotation angle on the reflection coefficient. (b-c) Asymmetric transmission of vortex waves (positive and negative topological charges) with near-zero ...

The vibrations of atoms in a crystal generate one type of rotation, an intrinsic spin-like trait called angular momentum. For ...

Researchers discovered that atomic rotations inside a crystal can unexpectedly flip direction while still obeying the laws of ...