We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Synthesis of Superconductor-Topological Insulator Hybrid Nanoribbon Structures.
- Authors
Schönherr, Piet; Zhang, Fengyu; Srot, Vesna; van Aken, Peter; Hesjedal, Thorsten
- Abstract
Superconductors in proximity to topological insulators (TIs) have the potential to unlock exotic quantum phenomena, such as Majorana fermions. Quasi-one-dimensional structures are particularly suited to host these quantum states. Despite the growth of TI nanostructures being relatively straightforward, the in situ synthesis of superconductor-TI structures has been challenging. Here, we present a systematic study of the growth of the s-wave superconductor Sn on the TI Bi2Te3 by physical vapor transport. If Sn does not enter the Bi2Te3 lattice as a dopant, two types of structures are formed: Sn nanoparticles, that cover Bi2Te3 plates and belts in a cloud-like shape, and thin Sn layers on Bi2Te3 plates, that appear in puddle-like recessions. These heterostructures have potential applications as novel quantum devices. The in-situ synthesis of superconductor-topological insulator (TI) heterostructures has been challenging. Here, for the first time, a study of the growth of the s-wave superconductor Sn on the TI Bi2Te3 by physical vapor transport was presented. Three different growth scenarios were observed: (1) Sn-decorated Bi2Te3, (2) local Sn-rich areas on Bi2Te3 plates, and (3) Sn-doped Bi2Te3. The different growth regimes are controlled by the Sn precursor quantity, carrier gas flux, and growth time. Each type has its specific application potentials.
- Subjects
CHEMISTRY of superconductors; NANORIBBONS; CHEMICAL synthesis; NANOSTRUCTURES; METAL nanoparticles; QUANTUM states
- Publication
NANO, 2017, Vol 12, Issue 8, p-1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292017500953