Abstract

Kagome superconductors AV3Sb5 (A = K, Rb and Cs) have attracted much recent attention due to the coexistence of multiple exotic orders. Among them, the charge density wave (CDW) order has been shown to host various unconventional behaviors. Here, we investigate the CDW order by a combination of both bulk and surface doping methods. While element substitutions in bulk doping change both carriers and the crystal lattice, the surface doping primarily tunes the carrier concentration. As such, our results reveal a two-dimensional phase diagram of the CDW in doped CsV3Sb5. In the lightly bulk doped regime, the existence of CDW order is reversible by tuning the carrier concentration. But excessive bulk doping permanently destroys the CDW, regardless of the carrier doping level. These results provide insights to the origin of the CDW from both electronic and structural degrees of freedom. They also open an avenue for manipulating the exotic CDW order in Kagome superconductors.

Details

Title
Two-dimensional phase diagram of the charge density wave in doped CsV3Sb5
Author
Huai, Linwei 1   VIAFID ORCID Logo  ; Li, Hongyu 1 ; Han, Yulei 2   VIAFID ORCID Logo  ; Luo, Yang 1 ; Peng, Shuting 1   VIAFID ORCID Logo  ; Wei, Zhiyuan 1 ; Shen, Jianchang 1 ; Wang, Bingqian 1 ; Miao, Yu 1 ; Sun, Xiupeng 3 ; Ou, Zhipeng 1 ; Liu, Bo 1 ; Yu, Xiaoxiao 1 ; Xiang, Ziji 1   VIAFID ORCID Logo  ; Kuang, Min-Quan 4   VIAFID ORCID Logo  ; Qiao, Zhenhua 1 ; Chen, Xianhui 1   VIAFID ORCID Logo  ; He, Junfeng 1   VIAFID ORCID Logo 

 University of Science and Technology of China, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, Hefei, China (GRID:grid.59053.3a) (ISNI:0000 0001 2167 9639) 
 Fuzhou University, Department of Physics, Fuzhou, China (GRID:grid.411604.6) (ISNI:0000 0001 0130 6528) 
 University of Science and Technology of China, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, Hefei, China (GRID:grid.59053.3a) (ISNI:0000 0001 2167 9639); University of Science and Technology of China, Hefei National Laboratory, Hefei, China (GRID:grid.59053.3a) (ISNI:0000 0001 2167 9639) 
 Southwest University, Chongqing Key Laboratory of Micro & Nano Structure Optoelectronics, and School of Physical Science and Technology, Chongqing, China (GRID:grid.263906.8) (ISNI:0000 0001 0362 4044) 
Pages
23
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
23974648
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2954355034
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.