Tuning interactions between spins in a superconductor
Abstract
Majorana zero modes (MZMs) have been proposed as the building blocks for fault-tolerant topological quantum computation. Recent experiments have found both spin and charge signatures of MZMs at the ends of spin chains on superconducting surfaces. However, the properties of such chains have not been reliably controlled experimentally. Here, we present a platform in which long-range spin–spin interactions and hybridization of spin-induced in-gap states on the surface of a superconductor can be tuned with unprecedented precision by changing the distance between the spins using an atomic manipulation technique. This capability is required for tailoring magnetic textures and engineering in-gap states band structures in spin assemblies and opens up the possibility of exploring new topological superconducting phases with tunable properties.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 29, 2021
- Source ID
- 10.1073/pnas.2024837118
Entities
People
- Ali Yazdani
- Daniel Loss
- Hao Ding
- Jelena Klinovaja
- Mallika T. Randeria
- Oindrila Deb
- Silas Hoffman
- Yuwen Hu
Organizations
- Gordon and Betty Moore Foundation
- National Science Foundation
- Office of Naval Research Global
- Princeton University
- University of Basel
- University of Florida