Misconceptions associated with the Origin of Charge Density Waves
By Xuetao Zhu, Jiandong Guo, Jiandi Zhang, and E. W. Plummer, Advances in Physics: X, 2, 622 (2017).
Charge density wave (CDW) is an important concept in condensed matter physics, germane to a number of physical phenomena. But the origin of CDW is still under debate, partly because the origin and properties of CDW are highly material-dependent. The concept of a CDW has been applied to many materials without a clear definition of the fundamental nature of CDW. As a result, misconceptions about CDW can be seen in literature. In this review, we will try to describe and explain the possible existing misconceptions associated with the origin of CDWs.