Accelerated Search for Gate-tunable High Tc Superconductivity in Twisted Trilayer Graphe
Abstract
Recent experimental results in twisted bilayer graphene have shown that careful control of the twist-angle between layers can give rise to correlated electronic phases including Mott insulators and superconductors in graphene. This discovery has led to a tremendous amount of activity in the condensed matter community on twisted bilayer structures, with theoretical works focusing on explaining these correlated states or studying what other bilayer systems could show similar effects. Instead of restricting our interest to just two layers of graphene, we propose that a multi-layer system where each layer has relative (possibly incommensurate) orientation to its adjacent layers could provide fundamentally new physics that goes beyond what has already been observed in twisted bilayer graphene. We propose to develop and investigate novel superconductivity with higher predicted transition temperature in twisted trilayer graphene, as the prototypical system of the general twisted multilayer graphene, beyond the bilayer configuration. The proposed experiments will push the frontiers of nanotechnology and condensed matter physics, potentially leading to novel new physics and device concepts including unconventional high Tc superconductors and gate-defined superconducting Josephson junctions with wide applications in quantum electronics, electromagnetic sensors, and scalable quantum computing. To increase the competitiveness and output efficiency of the proposed project, and to strengthen and expand the proposed project to include a path towards novel opto-electronic quantum devices, we request funding to acquire a Montana helium-free cryostation S50, with accompanying essential accessories including magnet and optical access.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 09, 2020
- Source ID
- W911NF2010114
Entities
People
- Mitchell Luskin
Organizations
- Army Contracting Command
- United States Army
- University of Minnesota