Topical review: recent progress of charge density waves in 2D transition metal dichalcogenide-based heterojunctions and their applications

Ziqiang Xu; Huixia Yang; Xuan Song; Yaoyao Chen; Han Yang; Meng Liu; Zeping Huang; Quanzhen Zhang; Jiatao Sun; Liwei Liu; Yeliang Wang

doi:10.1088/1361-6528/ac21ed

Topical review: recent progress of charge density waves in 2D transition metal dichalcogenide-based heterojunctions and their applications

Nanotechnology. 2021 Sep 17;32(49). doi: 10.1088/1361-6528/ac21ed.

Authors

Affiliation

¹ School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China.

PMID: 34450606
DOI: 10.1088/1361-6528/ac21ed

Abstract

Charge density wave (CDW) is an intriguing physical phenomenon especially found in two-dimensional (2D) layered systems such as transition-metal dichalcogenides (TMDs). The study of CDW is vital for understanding lattice modification, strongly correlated electronic behaviors, and other related physical properties. This paper gives a review of the recent studies on CDW emerging in 2D TMDs. First, a brief introduction and the main mechanisms of CDW are given. Second, the interplay between CDW patterns and the related unique electronic phenomena (superconductivity, spin, and Mottness) is elucidated. Then various manipulation methods such as doping, applying strain, local voltage pulse to induce the CDW change are discussed. Finally, examples of the potential application of devices based on CDW materials are given. We also discuss the current challenge and opportunities at the frontier in this research field.

Keywords: CDW; Mottness; TMDs; spin; superconductivity; two-dimensional systems.

Publication types

Review