| Title | Nodal and Nematic Superconducting Phases in NbSe2 Monolayers from Competing Superconducting Channels |
| Author | |
| Corresponding Author | Lortz，Rolf |
| Publication Years | 2022-08-19
|
| DOI | |
| Source Title | |
| ISSN | 0031-9007
|
| EISSN | 1079-7114
|
| Volume | 129Issue:8 |
| Abstract | Transition metal dichalcogenides like 2H-NbSe2 in their two-dimensional (2D) form exhibit Ising superconductivity with the quasiparticle spins being firmly pinned in the direction perpendicular to the basal plane. This enables them to withstand exceptionally high magnetic fields beyond the Pauli limit for superconductivity. Using field-angle-resolved magnetoresistance experiments for fields rotated in the basal plane we investigate the field-angle dependence of the upper critical field (Hc2), which directly reflects the symmetry of the superconducting order parameter. We observe a sixfold nodal symmetry superposed on a twofold symmetry. This agrees with theoretical predictions of a nodal topological superconducting phase near Hc2, together with a nematic superconducting state. We demonstrate that in NbSe2 such unconventional superconducting states can arise from the presence of several competing superconducting channels. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | Others
|
| Funding Project | Research Grants Council of the Hong Kong Special Administrative Region, China["GRF-16302018 GRF-16303820","GRF-16300717","C6025-19G-A","SBI17SC14"]
|
| WOS Research Area | Physics
|
| WOS Subject | Physics, Multidisciplinary
|
| WOS Accession No | WOS:000868417600001
|
| Publisher | |
| EI Accession Number | 20223512673891
|
| EI Keywords | Monolayers
; Selenium compounds
; Transition metals
|
| ESI Classification Code | Metallurgy and Metallography:531
|
| ESI Research Field | PHYSICS
|
| Scopus EID | 2-s2.0-85136154881
|
| Data Source | Scopus
|
| Citation statistics |
Cited Times [WOS]:6
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/401622 |
| Department | Department of Physics |
| Affiliation | 1.Department of Physics,The Hong Kong University of Science and Technology,Hong Kong,Clear Water Bay, Kowloon,Hong Kong 2.Department of Physics,Southern University of Science and Technology,Shenzhen,1088 Xueyuan Road, Nanshan District, Guangdong Province,518000,China 3.Institute for Theory of Condensed Matter,Institute for Quantum Materials and Technologies,Karlsruhe Institute of Technology,Karlsruhe,76131,Germany |
| Recommended Citation GB/T 7714 |
Cho，Chang Woo,Lyu，Jian,An，Liheng,et al. Nodal and Nematic Superconducting Phases in NbSe2 Monolayers from Competing Superconducting Channels[J]. PHYSICAL REVIEW LETTERS,2022,129(8).
|
| APA |
Cho，Chang Woo.,Lyu，Jian.,An，Liheng.,Han，Tianyi.,Lo，Kwan To.,...&Lortz，Rolf.(2022).Nodal and Nematic Superconducting Phases in NbSe2 Monolayers from Competing Superconducting Channels.PHYSICAL REVIEW LETTERS,129(8).
|
| MLA |
Cho，Chang Woo,et al."Nodal and Nematic Superconducting Phases in NbSe2 Monolayers from Competing Superconducting Channels".PHYSICAL REVIEW LETTERS 129.8(2022).
|
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