Szczegóły publikacji
Opis bibliograficzny
Hard superconducting gap in InSb nanowires / Önder Gül, [et al.], Michał P. NOWAK, [et al.] // Nano Letters ; ISSN 1530-6984. — 2017 — vol. 17 iss. 4, s. 2690–2696. — Bibliogr. s. 2695–2696, Abstr. — Publikacja dostępna online od: 2017-03-29. — M. P. Nowak - dod. afiliacja: QuTech, Delft University of Technology, Kavli Institute of Nanoscience, Delft University of Technology
Autorzy (17)
- Gül Önder
- Zhang Hao
- de Vries Folkert K.
- Veen Jasper van
- Zuo Kun
- Mourik Vincent
- Conesa-Boj Sonia
- AGHNowak Michał Piotr
- Woerkom David J. van
- Quintero-Perez Marina
- Cassidy Maja C.
- Geresdi Attila
- Koelling Sebastian
- Car Diana
- Plissard Sebastien R.
- Bakkers Erik P.A.M.
- Kouwenhoven Leo P.
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 109579 |
|---|---|
| Data dodania do BaDAP | 2017-11-08 |
| DOI | 10.1021/acs.nanolett.7b00540 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Nano Letters |
Abstract
Topological superconductivity is a state of matter that can host Majorana modes, the building blocks of a topological quantum computer. Many experimental platforms predicted to show such a topological state rely on proximity induced superconductivity. However, accessing the topological properties requires an induced hard superconducting gap, which is challenging to achieve for most material systems. We have systematically studied how the interface between an InSb semiconductor nanowire and a NbTiN superconductor affects the induced superconducting properties. Step by step, we improve the homogeneity of the interface while ensuring a barrier-free electrical contact to the superconductor and obtain a hard gap in the InSb nanowire. The magnetic field stability of NbTiN allows the InSb nanowire to maintain a hard gap and a supercurrent in the presence of magnetic fields (similar to 0.5 T), a requirement for topological superconductivity in one-dimensional systems. Our study provides a guideline to induce superconductivity in various experimental platforms such as semiconductor nanowires, two-dimensional electron gases, and topological insulators and holds relevance for topological superconductivity and quantum computation.