L773:2397 4648
Search: L773:2397 4648 > Semiconductor-ferro...
- 3 of 19
- Previous record
- Next record
- To hitlist
Semiconductor-ferromagnet-superconductor planar heterostructures for 1D topological superconductivity
-
- Escribano, Samuel D. (author)
- Condensed Matter Physics Center (IFIMAC),Autonomous University of Madrid
-
- Maiani, Andrea (author)
- Niels Bohr Institute
-
- Leijnse, Martin (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,Niels Bohr Institute
- show more...
- show less...
- (creator_code:org_t)
- 2022-08-18
- 2022
- English.
- In: npj Quantum Materials. - : Springer Science and Business Media LLC. - 2397-4648. ; 7:1
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Hybrid structures of semiconducting (SM) nanowires, epitaxially grown superconductors (SC), and ferromagnetic-insulator (FI) layers have been explored experimentally and theoretically as alternative platforms for topological superconductivity at zero magnetic field. Here, we analyze a tripartite SM/FI/SC heterostructure but realized in a planar stacking geometry, where the thin FI layer acts as a spin-polarized barrier between the SM and the SC. We optimize the system’s geometrical parameters using microscopic simulations, finding the range of FI thicknesses for which the hybrid system can be tuned into the topological regime. Within this range, and thanks to the vertical confinement provided by the stacking geometry, trivial and topological phases alternate regularly as the external gate is varied, displaying a hard topological gap that can reach half of the SC one. This is a significant improvement compared to setups using hexagonal nanowires, which show erratic topological regions with typically smaller and softer gaps. Our proposal provides a magnetic field-free planar design for quasi-one-dimensional topological superconductivity with attractive properties for experimental control and scalability.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
- npj Quantum Materials (Search for host publication in LIBRIS)
To the university's database
- 3 of 19
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Escribano, Samue ...
- Maiani, Andrea
- Leijnse, Martin
- Flensberg, Karst ...
- Oreg, Yuval
- Levy Yeyati, Alf ...
- show more...
- Prada, Elsa
- Seoane Souto, Ru ...
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Condensed Matter ...
- Articles in the publication
- npj Quantum Mate ...
- By the university
- Lund University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
