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  Moiré engineering of spin–orbit coupling in twisted platinum diselenide

Klebl, L., Xu, Q., Fischer, A., Xian, L. D., Claassen, M., Rubio, A., et al. (2022). Moiré engineering of spin–orbit coupling in twisted platinum diselenide. Electronic Structure, 4(1): 014004. doi:10.1088/2516-1075/ac49f5.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-E8C8-0 Version Permalink: https://hdl.handle.net/21.11116/0000-000B-F52D-F
Genre: Journal Article

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 Creators:
Klebl, L.1, Author
Xu, Q.2, 3, Author
Fischer, A.1, Author
Xian, L. D.2, 4, 5, Author           
Claassen, M.6, Author
Rubio, A.4, 5, 7, Author           
Kennes, D. M.1, 4, 5, Author           
Affiliations:
1Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, ou_persistent22              
2Songshan Lake Materials Laboratory, ou_persistent22              
3College of Physics and Electronic Engineering, Center for Computational Sciences, Sichuan Normal University, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
5Center for Free Electron Laser Science, ou_persistent22              
6Department of Physics and Astronomy, University of Pennsylvania, ou_persistent22              
7Center for Computational Quantum Physics, Simons Foundation Flatiron Institute, ou_persistent22              

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 Abstract: We study the electronic structure and correlated phases of twisted bilayers of platinum diselenide using large-scale ab initio simulations combined with the functional renormalization group. PtSe2 is a group-X transition metal dichalcogenide, which hosts emergent flat bands at small twist angles in the twisted bilayer. Remarkably, we find that Moiré engineering can be used to tune the strength of Rashba spin–orbit interactions, altering the electronic behavior in a novel manner. We reveal that an effective triangular lattice with a twist-controlled ratio between kinetic and spin–orbit coupling (SOC) scales can be realized. Even dominant SOC can be accessed in this way and we discuss consequences for the interaction driven phase diagram, which features pronounced exotic superconducting and entangled spin-charge density waves.

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Language(s): eng - English
 Dates: 2021-12-172021-10-312022-01-112022-02-14
 Publication Status: Published online
 Pages: -
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 Rev. Type: Peer
 Identifiers: arXiv: 2201.10615
DOI: 10.1088/2516-1075/ac49f5
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Project name : We thank J Beyer and J Hauck for useful discussions on the generation and analysis of non-SU(2) fRG results. This work is supported by the European Research Council (ERC-2015-AdG-694097), Grupos Consolidados (IT1249-19), and SFB925. MC is supported by a startup Grant from the University of Pennsylvania. AR is supported by the Flatiron Institute, a division of the Simons Foundation. We acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under RTG 1995 and RTG 2247, within the Priority Program SPP 2244 '2DMP', under Germany's Excellence Strategy—Cluster of Excellence Matter and Light for Quantum Computing (ML4Q) EXC 2004/1-390534769 and—Cluster of Excellence and Advanced Imaging of Matter (AIM) EXC 2056-390715994. LX acknowledges the support from Distinguished Junior Fellowship program by the South Bay Interdisciplinary Science Center in the Songshan Lake Materials Laboratory and the Key-Area Research and Development Program of Guangdong Province of China (Grant No. 2020B0101340001). We acknowledge computational resources provided by the Simons Foundation Flatiron Institute, the Max Planck Computing and Data Facility, RWTH Aachen University under Project Number rwth0716 and the Platform for Data-Driven Computational Materials Discovery of the Songshan Lake laboratory. This work was supported by the Max Planck-New York City Center for Nonequilibrium Quantum Phenomena.
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Title: Electronic Structure
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 4 (1) Sequence Number: 014004 Start / End Page: - Identifier: ISSN: 2516-1075
CoNE: https://pure.mpg.de/cone/journals/resource/2516-1075