Unconventional superconductivity in chiral molecule–TaS2 hybrid superlattices

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929992" target="_blank" >RIV/60461373:22310/24:43929992 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41586-024-07625-4" target="_blank" >https://www.nature.com/articles/s41586-024-07625-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41586-024-07625-4" target="_blank" >10.1038/s41586-024-07625-4</a>

Result language

angličtina

Original language name

Unconventional superconductivity in chiral molecule–TaS2 hybrid superlattices

Original language description

Chiral superconductors, a unique class of unconventional superconductors in which the complex superconducting order parameter winds clockwise or anticlockwise in the momentum space1, represent a topologically non-trivial system with intrinsic time-reversal symmetry breaking (TRSB) and direct implications for topological quantum computing2,3. Intrinsic chiral superconductors are extremely rare, with only a few arguable examples, including UTe2, UPt3 and Sr2RuO4 (refs. 4–7). It has been suggested that chiral superconductivity may exist in non-centrosymmetric superconductors8,9, although such non-centrosymmetry is uncommon in typical solid-state superconductors. Alternatively, chiral molecules with neither mirror nor inversion symmetry have been widely investigated. We suggest that an incorporation of chiral molecules into conventional superconductor lattices could introduce non-centrosymmetry and help realize chiral superconductivity10. Here we explore unconventional superconductivity in chiral molecule intercalated TaS2 hybrid superlattices. Our studies reveal an exceptionally large in-plane upper critical field Bc2,|| well beyond the Pauli paramagnetic limit, a robust π-phase shift in Little–Parks measurements and a field-free superconducting diode effect (SDE). These experimental signatures of unconventional superconductivity suggest that the intriguing interplay between crystalline atomic layers and the self-assembled chiral molecular layers may lead to exotic topological materials. Our study highlights that the hybrid superlattices could lay a versatile path to artificial quantum materials by combining a vast library of layered crystals of rich physical properties with the nearly infinite variations of molecules of designable structural motifs and functional groups11. © The Author(s), under exclusive licence to Springer Nature Limited 2024.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/LL2101" target="_blank" >LL2101: Next Generation of 2D Monoelemental Materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NATURE

ISSN

0028-0836

e-ISSN

1476-4687

Volume of the periodical

632

Issue of the periodical within the volume

8023

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

69-74

UT code for WoS article

001282532700003

EID of the result in the Scopus database

2-s2.0-85197153581