Clean 2D superconductivity in a bulk van der Waals superlattice
Name
1906.02065.pdf
Description
Accepted version
Size
7.59 MB
Format
Adobe PDF
Checksum (MD5)
435bff0b08d9ce6a6b74845f93ad5890
Author(s)
Devarakonda, Aravind
Inoue, Hisashi
Suzuki, Takehito
Fu, Liang
Checkelsky, Joseph
Date Issued
October 2020
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Devarakonda, A. et al. “Clean 2D superconductivity in a bulk van der Waals superlattice.” Science, 370, 6513 (October 2020): 231-236 © 2020 The Author(s)
Version
Author's final manuscript
Abstract
Advances in low-dimensional superconductivity are often realized through improvements in material quality. Apart from a small group of organic materials, there is a near absence of clean-limit two-dimensional (2D) superconductors, which presents an impediment to the pursuit of numerous long-standing predictions for exotic superconductivity with fragile pairing symmetries. We developed a bulk superlattice consisting of the transition metal dichalcogenide (TMD) superconductor 2H-niobium disulfide (2H-NbS2) and a commensurate block layer that yields enhanced two-dimensionality, high electronic quality, and clean-limit inorganic 2D superconductivity. The structure of this material may naturally be extended to generate a distinct family of 2D superconductors, topological insulators, and excitonic systems based on TMDs with improved material properties.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1126/science.aaz6643
