DEPTH · D-wavE Proximitiy effects in Topological Hybrids
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2021-09-01 → 2023-08-31
- EU contribution
- €131,069
- Participants
- 1
- Scheme
- MSCA-IF
Lines connect the coordinator with its partners.
Results in brief
D-wavE Proximitiy effects in Topological Hybrids
This Project addressed the challenge of experimentally studying proximity effects and Josephson coupling between high-temperature, d-wave superconductors and Van der Waals (VdW) 2D materials, using solid-state devices. The goal was to demonstrate the transmission of cooper pairs at the interface between d-wave superconductor and VdW materials, Josephson coupling mediated by the VdW, and exotic effects linked to its presence, all probed by transport measurements. It is important for society as it represents a strong demonstration of the possibility of coupling high temperature superconducting oxides with 2D materials to realize superconducting circuits, allowing to create new functionalities for superconducting electronics working at nitrogen temperatures. The Objectives of the project were to characterize the proximity effect and Andreev Reflection at single d-wave superconductor/VdW interface, as well as realizing d-wave superconductor/VdW/d-wave superconductor Josephson junction. This action allowed to study multiple fundamental and experimental aspects of superconducting heterostructures combining d-wave superconductors and low dimension materials. It allowed for the development of state of the art planar heterostructures combining HTc materials with materials in the 2D limit and large scale growth of 2D VdW structures on HTc materials, as well as their characterization. It allowed the beneficiary to develop this activity and helped him to get a permanent position in the host institution.
Data: CORDIS, © European Union
Project objective
Topological superconducting matter has attracted much interest in the recent years, carrying the long-term vision of next generation of quantum electronic devices. Its potential stems from fundamental underlying properties, specifically the presence of topologically protected currents or low energy modes such as Majorana fermions.This project aims at exploring a novel type of topological superconducting matter solid-state device (Topological Josephson Junctions) resulting from coupling a high temperature d-wave superconductor and recently discovered two-dimensional Topological Insulators (2DTIs). The project will rely on 2DTIs made from transition metal dichalcogenides. These Dirac materials support 1D channels at their boundaries which are protected from backscattering by time reversal symmetry. While in proximity with a superconductor, superconductivity can be induced in the Quantum Spin Hall states, resulting in topologically protected superconducting 1D channels. If the superconductor is a high temperature d-wave, new devices can be envisioned based on the specific nodal pairing symmetries coupling with the 2DTI. This project aims at exploring the potential of such new devices for quantum electronics, leading the way to the realization of topological electronic devices and fault-tolerant topological quantum information applications. This reintegration project relies on the unique complementary competences of the researcher on TIs (imported from his US post-doc) and of the host institution on high temperature d-wave superconductors and 2D materials. The acquired knowledge and IP training by the industrial partner will give the researcher a unique profile in the European research environment. This will give the researcher a strong edge to seek for a position at the interface between academia and industry.
Original text from CORDIS.
Participants
- CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS · ParisCoordinatorFrance
Links
Data: CORDIS, © European Union