Charge density waves in low-dimensional material

Charge density waves (CDWs) have triggered off extensive research in low-dimensional systems. Thediscovery of CDW offers a new crucial clue to understanding the intrinsic mechanisms of low-dimensionalelectron-phonon coupling and electron correlation. In addition, the physical properties of low-dimensionalmaterial such as magnetism and superconductivity can be fine-tuned with accurately and effectively controlledCDW phase. At the beginning,we briefly introduce the basic properties of CDW in one-dimensional and quasione-dimensional materials, revealing the physical proprieties of the CDW, for instance, the excited state and themanipulation technologies. Then, focusing on the CDW in a two-dimensional system, we mainly introduce therecent research progress and the generation mechanism of CDW of two-dimensional materials. The interactionbetween CDW and Mott insulator and between superconductivity and other orders such as spin density waveand pair density wave provide a new perspective to research the multi-electron collective excitation and electroninteraction. The manipulation of multi-electron collective excitation and electron-phonon interaction in CDWthrough doping, high pressure and laser pulse is also introduced and shares similarity with the one-dimensionalsystem. Finally, in this article we propose a potential research application of two dimensional CDW