Szczegóły publikacji
Opis bibliograficzny
Optimal superconductivity in twisted bilayer WSe$_2$ where the Van Hove singularity crosses half-filling / Michał ZEGRODNIK, Waseem AKBAR, Andrzej BIBORSKI, Louk Rademaker // Physical Review Research [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2643-1564 . — 2026 — vol. 8 iss. 1 art. no. L012070, s. L012070-1–L012070-8. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. L012070-7–L012070-8, Abstr. — Publikacja dostępna online od: 2026-03-25
Autorzy (4)
- AGHZegrodnik Michał
- AGHAkbar Waseem
- AGHBiborski Andrzej
- Rademaker Louk
Dane bibliometryczne
| ID BaDAP | 166881 |
|---|---|
| Data dodania do BaDAP | 2026-04-08 |
| Tekst źródłowy | URL |
| DOI | 10.1103/pkf3-fkv4 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review Research |
Abstract
The recent discovery of unconventional superconductivity has pointed to twisted WSe2 bilayer as a versatile platform for studying the correlated and topological phases of matter. Here, we analyze the effect of the displacement field and electron interactions on the formation of a topological paired state in twisted WSe2 . Our approach is based on the effective single band 𝑡−𝐽−𝑈 model supplemented with intersite Coulomb interaction term and treated within the Gutzwiller approximation. We show that the superconducting phase is stabilized in a small range of displacement fields where the Van Hove singularity crosses half-filling, which is in qualitative agreement with recent experimental data. According to our analysis, such a circumstance comes as a result of a subtle interplay between the large density of states of the Van Hove singularity, in combination with the renormalization effects that appear in the weak-to-moderate correlation regime. The two factors create favorable conditions for the superconducting pairing only in a small area of the phase diagram.
