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Larger in-plane upper critical field and superconducting diode effect observed in topological superconductor candidate InNbS2 nanoribbons
Zheng, Bo1; Wang, Changlong1; Feng, Xukun2; Sun, Xiaozhen3; Wang, Shasha1; Qiu, Dawei4; Ma, Xiang1; Li, Ruimin1; Cheng, Guanglei4; Wang, Lan5; Lu, Yalin1; Li, Peng3; Yang, Shengyuan A.6; Xiang, Bin1
2024-07
Source PublicationNano Research
ISSN1998-0124
Volume17Issue:7Pages:6686-6694
Abstract

Recently, the coexistence of topology and superconductivity has garnered considerable attention. Specifically, the dimensionality of these materials is crucial for the realization of topological quantum computation. However, the naturally grown materials, especially with one-dimensional feature that exhibits the coexistence of topology and superconductivity, still face challenges in terms of experimental realization and scalability, which hinders the fundamental research development and the potential to revolutionize quantum computing. Here, we report the first experimental synthesis of quasi-one-dimensional InNbS nanoribbons that exhibit the coexistence of topological order and superconductivity via a chemical vapor transport method. Especially, the in-plane upper critical field of InNbS nanoribbons exceeds the Pauli paramagnetic limit by more than 2.2 times, which can be attributed to the enhanced spin-orbit coupling and the weakened interlayer interaction between the NbS layers induced by the insertion of In atoms, making InNbS exhibit spin-momentum locking similar to that of monolayer NbS. Moreover, for the first time, we report the superconducting diode effect in a quasi-one-dimensional superconductor system without any inherent geometric imperfections. The measured maximum efficiency is manifested as 14%, observed at μH ≈ ±60 mT, and we propose that the superconducting diode effect can potentially be attributed to the presence of the nontrivial topological band. Our work provides a platform for studying exotic phenomena in condensed matter physics and potential applications in quantum computing and quantum information processing. (Figure presented.)

KeywordTopological Order Superconductivity Nanoribbon Superconducting Anisotropy Superconducting Diode
DOI10.1007/s12274-024-6599-0
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:001266356600062
PublisherTSINGHUA UNIV PRESSB605D, XUE YAN BUILDING, BEIJING 100084, PEOPLES R CHINA
Scopus ID2-s2.0-85190558935
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Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorXiang, Bin
Affiliation1.Department of Materials Science and Engineering, CAS Key Lab of Materials for Energy Conversion,Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, China
2.Research Laboratory for Quantum Materials, Singapore University of Technology and Design, Singapore 487372, Singapore
3.School of Microelectronics, University of Science and Technology of China, Hefei 230052, China
4.CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
5.Lab of Low Dimensional Magnetism and Spintronic Devices, School of Physics, Hefei University of Technology, Hefei 230009, China
6.Research Laboratory for Quantum Materials, IAPME, University of Macau, Macau, China
Recommended Citation
GB/T 7714
Zheng, Bo,Wang, Changlong,Feng, Xukun,et al. Larger in-plane upper critical field and superconducting diode effect observed in topological superconductor candidate InNbS2 nanoribbons[J]. Nano Research, 2024, 17(7), 6686-6694.
APA Zheng, Bo., Wang, Changlong., Feng, Xukun., Sun, Xiaozhen., Wang, Shasha., Qiu, Dawei., Ma, Xiang., Li, Ruimin., Cheng, Guanglei., Wang, Lan., Lu, Yalin., Li, Peng., Yang, Shengyuan A.., & Xiang, Bin (2024). Larger in-plane upper critical field and superconducting diode effect observed in topological superconductor candidate InNbS2 nanoribbons. Nano Research, 17(7), 6686-6694.
MLA Zheng, Bo,et al."Larger in-plane upper critical field and superconducting diode effect observed in topological superconductor candidate InNbS2 nanoribbons".Nano Research 17.7(2024):6686-6694.
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