Physicists identify key mechanism behind chiral charge density wave in TiSe₂
Illustration of charge density wave (CDW) and periodic lattice distortion (PLD) and their symmetries in 1T-TiSe2. The symmetry of the system as a whole cannot be higher than the intersection of the two symmetries. As a result, the system becomes chiral, although neither CDW nor PLD is chiral by itself. Credit: From Nature Physics (2024). […]