Engineering Superconductivity in Germanium
Abstract
Stabilizing a superconducting phase in group IV elements has been elusive in experiments over the past three decades. Nevertheless, there have been numerous efforts to create superconducting phases in Si and Ge. For example, it has been known that Si can exhibit a superconducting phase when hyperdoped with Gallium and Boron. Hyperdoping above the solid solubility limits requires non-equilibrium methods, such as pulsed laser irradiation and ion implantation with subsequent annealing near melting temperatures. We propose to study the nature of superconductivity in Ge bulk and two-dimensional (2D) films. We investigate the effect of disorder which can be the driving factor in creating a metallic to superconducting quantum phase transition. The ultimate goal of the project is to provide a transparent and uniform superconductor-semiconductor interface in homoepitaxy of Ge to create a platform for making Josephson junction devices.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 21, 2022
- Source ID
- FA95502110338XX0
Entities
People
- Javad Shabani
Organizations
- Air Force Office of Scientific Research
- New York University
- United States Air Force