Charge density waves in two-dimensional transition metal dichalcogenides

Jinwoong Hwang; Wei Ruan; Yi Chen; Shujie Tang; Michael F Crommie; Zhi-Xun Shen; Sung-Kwan Mo

doi:10.1088/1361-6633/ad36d3

Charge density waves in two-dimensional transition metal dichalcogenides

Rep Prog Phys. 2024 Apr 2;87(4). doi: 10.1088/1361-6633/ad36d3.

Authors

Jinwoong Hwang¹, Wei Ruan², Yi Chen^{3

4

5}, Shujie Tang⁶, Michael F Crommie^{7

8

9}, Zhi-Xun Shen^{10

11}, Sung-Kwan Mo¹²

Affiliations

¹ Department of Physics and Institute of Quantum Convergence Technology, Kangwon National University, Chuncheon 24341, Republic of Korea.
² State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200438, People's Republic of China.
³ International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, People's Republic of China.
⁴ Collaborative Innovation Center of Quantum Matter, Beijing 100871, People's Republic of China.
⁵ Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials, Peking University, Beijing 100871, People's Republic of China.
⁶ State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China.
⁷ Department of Physics, University of California, Berkeley, CA, United States of America.
⁸ Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States of America.
⁹ Kavli Energy NanoSciences Institute at the University of California at Berkeley, Berkeley, CA 94720, United States of America.
¹⁰ Geballe Laboratory for Advanced Materials, Departments of Physics and Applied Physics, Stanford University, Stanford, CA, United States of America.
¹¹ Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America.
¹² Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 United States of America.

PMID: 38518359
DOI: 10.1088/1361-6633/ad36d3

Abstract

Charge density wave (CDW is one of the most ubiquitous electronic orders in quantum materials. While the essential ingredients of CDW order have been extensively studied, a comprehensive microscopic understanding is yet to be reached. Recent research efforts on the CDW phenomena in two-dimensional (2D) materials provide a new pathway toward a deeper understanding of its complexity. This review provides an overview of the CDW orders in 2D with atomically thin transition metal dichalcogenides (TMDCs) as the materials platform. We mainly focus on the electronic structure investigations on the epitaxially grown TMDC samples with angle-resolved photoemission spectroscopy and scanning tunneling microscopy/spectroscopy as complementary experimental tools. We discuss the possible origins of the 2D CDW, novel quantum states coexisting with them, and exotic types of charge orders that can only be realized in the 2D limit.

Keywords: ARPES; MBE; STM; charge density wave; transition metal dichalcogenides.

Publication types

Review