Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅
Superconductors with kagome lattices have been identified for over 40 years, with a superconducting transition temperature TC up to 7K. Recently, certain kagome superconductors have been found to exhibit an exotic charge order, which intertwines with superconductivity and persists to a temperatur...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/155565 |
| _version_ | 1826126419943489536 |
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| author | Shumiya, Nana Md. Shafayat Hossain Yin, Jia-Xin Jiang, Yu-Xiao Ortiz, Brenden R. Liu, Hongxiong Shi, Youguo Yin, Qiangwei Lei, Hechang Zhang, Songtian S. Chang, Guoqing Zhang, Qi Cochran, Tyler A. Multer, Daniel Litskevich, Maksim Cheng, Zi-Jia Yang, Xian P. Guguchia, Zurab Wilson, Stephen D. M. Zahid Hasan |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Shumiya, Nana Md. Shafayat Hossain Yin, Jia-Xin Jiang, Yu-Xiao Ortiz, Brenden R. Liu, Hongxiong Shi, Youguo Yin, Qiangwei Lei, Hechang Zhang, Songtian S. Chang, Guoqing Zhang, Qi Cochran, Tyler A. Multer, Daniel Litskevich, Maksim Cheng, Zi-Jia Yang, Xian P. Guguchia, Zurab Wilson, Stephen D. M. Zahid Hasan |
| author_sort | Shumiya, Nana |
| collection | NTU |
| description | Superconductors with kagome lattices have been identified for over 40 years, with a superconducting
transition temperature TC up to 7K. Recently, certain kagome superconductors have been found to
exhibit an exotic charge order, which intertwines with superconductivity and persists to a
temperature being one order of magnitude higher than TC. In this work, we use scanning tunneling
microscopy (STM) to study the charge order in kagome superconductor RbV3Sb5. We observe both
a 2×2 chiral charge order and nematic surface superlattices (predominantly 1×4). We find that the
2×2 charge order exhibits intrinsic chirality with magnetic field tunability. Defects can scatter
electrons to introduce standing waves, which couple with the charge order to cause extrinsic effects.
While the chiral charge order resembles that discovered in KV3Sb5, it further interacts with the
nematic surface superlattices that are absent in KV3Sb5 but exist in CsV3Sb5. |
| first_indexed | 2024-10-01T06:52:22Z |
| format | Journal Article |
| id | ntu-10356/155565 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:52:22Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1555652023-02-28T19:25:20Z Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ Shumiya, Nana Md. Shafayat Hossain Yin, Jia-Xin Jiang, Yu-Xiao Ortiz, Brenden R. Liu, Hongxiong Shi, Youguo Yin, Qiangwei Lei, Hechang Zhang, Songtian S. Chang, Guoqing Zhang, Qi Cochran, Tyler A. Multer, Daniel Litskevich, Maksim Cheng, Zi-Jia Yang, Xian P. Guguchia, Zurab Wilson, Stephen D. M. Zahid Hasan School of Physical and Mathematical Sciences Science::Physics Kagome Superconductor Topological Materials Superconductors with kagome lattices have been identified for over 40 years, with a superconducting transition temperature TC up to 7K. Recently, certain kagome superconductors have been found to exhibit an exotic charge order, which intertwines with superconductivity and persists to a temperature being one order of magnitude higher than TC. In this work, we use scanning tunneling microscopy (STM) to study the charge order in kagome superconductor RbV3Sb5. We observe both a 2×2 chiral charge order and nematic surface superlattices (predominantly 1×4). We find that the 2×2 charge order exhibits intrinsic chirality with magnetic field tunability. Defects can scatter electrons to introduce standing waves, which couple with the charge order to cause extrinsic effects. While the chiral charge order resembles that discovered in KV3Sb5, it further interacts with the nematic surface superlattices that are absent in KV3Sb5 but exist in CsV3Sb5. Nanyang Technological University National Research Foundation (NRF) Accepted version Experimental and theoretical work at Princeton University was supported by the Gordon and Betty Moore Foundation (GBMF4547 and GBMF9461; M.Z.H.). The material characterization is supported by the United States Department of Energy (US DOE) under the Basic Energy Sciences programme (grant number DOE/BES DE-FG-02-05ER46200). S.D.W. and B.R.O. acknowledge support from the University of California Santa Barbara Quantum Foundry, funded by the National Science Foundation (NSF DMR-1906325). Research reported here also made use of shared facilities of the UCSB MRSEC (NSF DMR-1720256). B.R.O. also acknowledges support from the California NanoSystems Institute through the Elings fellowship program. T.A.C. was supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1656466. H.C.L. was supported by National Natural Science Foundation of China (Grant No. 11822412 and 11774423), Ministry of Science and Technology of China (Grant No. 2018YFE0202600 and 2016YFA0300504) and Beijing Natural Science Foundation (Grant No. Z200005). Y.S. was supported by the National Natural Science Foundation of China (U2032204), and the K. C. Wong Education Foundation (GJTD-2018-01). G.C. would like to acknowledge the support of the National Research Foundation, Singapore under its NRF Fellowship Award (NRFNRFF13-2021-0010) and the Nanyang Assistant Professorship grant from Nanyang Technological University 2022-03-04T08:21:27Z 2022-03-04T08:21:27Z 2021 Journal Article Shumiya, N., Md. Shafayat Hossain, Yin, J., Jiang, Y., Ortiz, B. R., Liu, H., Shi, Y., Yin, Q., Lei, H., Zhang, S. S., Chang, G., Zhang, Q., Cochran, T. A., Multer, D., Litskevich, M., Cheng, Z., Yang, X. P., Guguchia, Z., Wilson, S. D. & M. Zahid Hasan (2021). Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅. Physical Review B, 104(3), 035131-. https://dx.doi.org/10.1103/PhysRevB.104.035131 2469-9950 https://hdl.handle.net/10356/155565 10.1103/PhysRevB.104.035131 3 104 035131 en NRF-NRFF13-2021-0010 Physical Review B © 2021 American Physical Society. All rights reserved. This paper was published in Physical Review B and is made available with permission of American Physical Society. application/pdf |
| spellingShingle | Science::Physics Kagome Superconductor Topological Materials Shumiya, Nana Md. Shafayat Hossain Yin, Jia-Xin Jiang, Yu-Xiao Ortiz, Brenden R. Liu, Hongxiong Shi, Youguo Yin, Qiangwei Lei, Hechang Zhang, Songtian S. Chang, Guoqing Zhang, Qi Cochran, Tyler A. Multer, Daniel Litskevich, Maksim Cheng, Zi-Jia Yang, Xian P. Guguchia, Zurab Wilson, Stephen D. M. Zahid Hasan Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ |
| title | Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ |
| title_full | Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ |
| title_fullStr | Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ |
| title_full_unstemmed | Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ |
| title_short | Intrinsic nature of chiral charge order in the kagome superconductor RbV₃Sb₅ |
| title_sort | intrinsic nature of chiral charge order in the kagome superconductor rbv₃sb₅ |
| topic | Science::Physics Kagome Superconductor Topological Materials |
| url | https://hdl.handle.net/10356/155565 |
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