Atoms of a tantalum disulfide (TaS2) crystal with a 2D endotaxial layer in the center. The pink cloud represents the charge density wave, a clumped pattern of electrons, surrounding the 2D layer ...

Charge density wave (CDW) is a quantum mechanical phenomenon, which induces distortion in the crystal structures of some low-dimensional (1D or 2D) metals, when the temperature is reduced. Such ...