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  Hidden Charge Order and Multiple Electronic Instabilities in EuTe4

Xiao, K., Dong, W.-H., Wang, X., Yu, J., Fu, D., Hu, Z., et al. (2024). Hidden Charge Order and Multiple Electronic Instabilities in EuTe4. Nano Letters, 24(25), 7681-7687. doi:10.1021/acs.nanolett.4c01588.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000F-6F95-D Version Permalink: https://hdl.handle.net/21.11116/0000-000F-7909-0
Genre: Journal Article

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xiao-et-al-2024-hidden-charge-order-and-multiple-electronic-instabilities-in-eute4.pdf (Publisher version), 6MB
 
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Supporting Information: DFT simulations on STM image; Bias dependence of the stripe-like charge order; Rotation of the stripe-like charge order; Generic discussions for wave vector mixing; Origin of the two types of CDW states; Reasonable explanation for the 90° rotation of stripe CDW; Bias dependence of the spindle-shaped charge order; Rotation of the spindle-shaped charge order; Stripe-like charge order at 77 K
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 Creators:
Xiao, K.1, 2, Author
Dong, W.-H.1, 2, Author
Wang, X.1, 2, Author
Yu, J.1, 2, Author
Fu, D.1, 2, Author
Hu, Z.1, 2, Author
Guo, Y.1, 2, Author
Zhang, Q.1, 2, Author
Hou, X.3, Author
Guo, Y.3, 4, Author
Yang, L.1, 2, Author
Xu, Y.1, 2, Author
Tang, P.5, 6, 7, Author           
Duan, W.1, 2, Author
Xue, Q.1, 2, 8, Author
Li, W.1, 2, Author
Affiliations:
1State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, ou_persistent22              
2Frontier Science Center for Quantum Information, ou_persistent22              
3School of Physical Science and Technology, ShanghaiTech University, ou_persistent22              
4ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, ou_persistent22              
5School of Materials Science and Engineering, Beihang University, ou_persistent22              
6Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
7Center for Free-Electron Laser Science, ou_persistent22              
8Southern University of Science and Technology, ou_persistent22              

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 Abstract: The rare-earth telluride compound EuTe4 exhibits a charge density wave (CDW) and an unconventional thermal hysteresis transition. Herein, we report a comprehensive study of the CDW states in EuTe4 by using low-temperature scanning tunneling microscopy. Two types of charge orders are observed at 4 K, including a newly discovered spindle-shaped pattern and a typical stripe-like pattern. As an exotic charge order, the spindle-shaped CDW is off-axis and barely visible at 77 K, indicating that it is a hidden order developed at low temperature. Based on our first-principles calculations, we reveal the origins of the observed electronic instabilities. The spindle-shaped charge order stems from a subsequent transition based on the stripe-like CDW phase. Our work demonstrates that the competition and cooperation between multiple charge orders can generate exotic quantum phases.

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Language(s): eng - English
 Dates: 2024-06-112024-04-032024-06-122024-06-142024-06-26
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.nanolett.4c01588
 Degree: -

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Project name : The research was supported by the Ministry of Science and Technology of China (Grant Nos. 2022YFA1403100, 2023YFA1406400) and the National Science Foundation of China (Grants Nos. 92365201, 51788104, 11427903, 52388201, 12025405, 12334003), the Initiative Research Projects of Tsinghua University (No. 20211080075), the Beijing Advanced Innovation Center for Future Chip (ICFC), and the Beijing Advanced Innovation Center for Materials Genome Engineering. The calculations were done on Hefei advanced computing center. Y.G. acknowledges the Double First-Class Initiative Fund of ShanghaiTech University. P.T. was supported by the National Science Foundation of China (Grant Nos. 12234011 and 12374053). W.-H.D. was supported by the Postdoctoral Fellowship Program of CPSF (Grant No. GZC20231363).
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Source 1

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Title: Nano Letters
  Abbreviation : Nano Lett.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 24 (25) Sequence Number: - Start / End Page: 7681 - 7687 Identifier: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403