Manipulating charge density wave state in kagome compound RbV_(3)Sb_(5)  

作　　者：孟雨欣 薛成龙 窦立国 赵伟民 汪琪玮 徐永杰 刘祥麒 夏威 郭艳峰 李绍春 Yu-Xin Meng;Cheng-Long Xue;Li-Guo Dou;Wei-Min Zhao;Qi-Wei Wang;Yong-Jie Xu;Xiangqi Liu;Wei Xia;Yanfeng Guo;Shao-Chun Li(National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210093,China;Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China;School of Physical Science and Technology,Shanghai Tech University,Shanghai 201210,China;Shanghai Tech Laboratory for Topological Physics,Shanghai 201210,China;Jiangsu Provincial Key Laboratory for Nanotechnology,Nanjing University,Nanjing 210093,China;Hefei National Laboratory,Hefei 230088,China)

机构地区：[1]National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210093,China [2]Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China [3]School of Physical Science and Technology,Shanghai Tech University,Shanghai 201210,China [4]Shanghai Tech Laboratory for Topological Physics,Shanghai 201210,China [5]Jiangsu Provincial Key Laboratory for Nanotechnology,Nanjing University,Nanjing 210093,China [6]Hefei National Laboratory,Hefei 230088,China

出　　处：《Chinese Physics B》2023年第9期391-395,共5页中国物理B（英文版）

基　　金：the National Key Research and Development Program of China(Grant No.2021YFA1400403);the National Natural Science Foundation of China(Grant Nos.92165205,11790311,and 11774149);Innovation Program for Quantum Science and Technology(Grant No.2021ZD0302800);the support by the open project of Beijing National Laboratory for Condensed Matter Physics(Grant No.ZBJ2106110017);the Double First-Class Initiative Fund of Shanghai Tech University。

摘　　要：Owing to the unique electronic structure,kagome materials AV_(3)Sb_(5)(A=K,Rb,Cs)provide a fertile platform of quantum phenomena such as the strongly correlated state and topological Dirac band.It is well known that RbV_(3)Sb_(5)exhibits a 2×2 unconventional charge density wave(CDW)state at low temperature,and the mechanism is controversial.Here,by using scanning tunneling microscopy/spectroscopy(STM/STS),we successfully manipulated the CDW state in the Sb plane of RbV_(3)Sb_(5),and realized a new3(1/2)×3(1/2)modulation together with the ubiquitous 2×2 period in the CDW state of RbV_(3)Sb_(5).This work provides a new understanding of the collective quantum ground states in the kagome materials.

关 键 词：kagome material charge density wave scanning tunneling microscopy 

分 类 号：O469[理学—凝聚态物理]