Simulating high-temperature superconductivity in a triangular moiré lattice. скачать в хорошем качестве

Simulating high-temperature superconductivity in a triangular moiré lattice.

Kin Fai Mak (MPI for the Structure and Dynamics of Matter, Hamburg and Cornell University). Kin Fai Mak discusses High Temperature Cuprate superconductivity, and the various attempts in cold atoms, and now in bilayer chalcogenides, to simulate the physics. He introduces the latest results of his research with Jie Shan on bilayer monlayer and bilayer TMD semiconductors, particularly Tungsten diSelenide WSe_2. He introduces the homo and hetero-bilayer compounds. Whereas the former has a large U/t ratio, leading to localized moments, the latter, consisting of a moire bilayer of WSe2, with a smaller U/t ratio, gives rise to a phase diagram which bears striking resemblance to that of the doped cuprate superconductors - with a Mott insulating, Strange metal, and superconducting domes.