Superconductivity in two-dimensional atomic crystals
Abstract
Title: Superconductivity in two-dimensional atomic crystalsObjective:The objective of this Young Investigator Program (YIP) is to explore the unique fundamental properties and device functionalities associated with broken inversion symmetry and strong spin-orbit interactions of a new class of crystalline superconductors with thickness down to the nanometer scale.Approach:PI will develop tunneling spectroscopy, Josephson junction devices and heattransport measurements that are suitable for micron-sized atomically thin samples to probe their superconducting order parameters and gap structures.SOW:The research consists of three tasks. Task1: Probe the spin-triplet pairing component in the Cooper pair wave function of two-dimensional (2D) niobium diselenide through its magnetic properties including the nonzero spin susceptibility and giant anisotropic magnetoresistance. Task 2: Search for the exotic Flude-Ferrel-Larkin-Ovchinnikov (FFLO) phase in few-layer niobium diselenide using phase-sensitive superconducting devices. Task 3: Search for a novel superconducting phase involving nodal points in the superconducting gap function that possess nonzero local Chern numbers inmonolayer niobium diselenide under a high in-plane magnetic field.ONR Relevance:Fundamental advances in low-dimensional electronic materials will continue to define the state-of-the-art for nanoelectronics. Metallic transition metal dichalcogenides such as niobium diselenide and van der Waals heterostructures that are developed in this program can impact the DOD capabilities in nanoscale sensors and detectors, as well as novel computing and memory devices, circuits and architectures.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 10, 2018
- Source ID
- N000141812368
Entities
People
- Kin Fai Mak
Organizations
- Cornell University
- Office of Naval Research
- United States Navy