Yifei Hao will present his comprehensive exam topic, “Emergent Two-Dimensional Superconductors” in-person.

Abstract: Two-dimensional (2D) superconductors exhibit many intriguing physical properties such as enhanced upper critical magnetic field, topological superconductors, and high transition temperature. The advent of 2D materials provides a rich platform to study the properties of superconductors in the reduced dimension. The origin of charge in different material systems are diverse including discontinuous polarization and defect, chemical doping, electrical doping, and interfacial modulation. By manipulating external magnetic fields and electric doping levels, novel phenomenon such as quantum metallic state and quantum Griffiths state can emerge. This report provides a comprehensive review of the interfacial superconductors and transition metal dichalcogenides superconductors. Finally, this report offers some potential research proposals for 2D superconductors.