2.11.2020, 10:00 CET:
Yuanbo Zhang
Fudan University, China

Probing the electronic structure of monolayer flakes of cuprate superconductors

The role of dimensionality in high Tc superconductivity is an interesting issue: many of the high Tc superconductor have layered atomic structures, and yet the link between the high Tc superconductivity and the two-dimensional nature of the crystal structure remains elusive. We fabricated atomically thin Bi2Sr2CaCu2O8+d (Bi-2212) and Bi2Sr2CuO6+d (Bi-2201) flakes, and used scanning tunneling microscopy/spectroscopy (STM/STS) to investigate their electronic structure. In this talk, I will discuss our recent results on the superconducting gap, pseudogap and charge order in Bi-2212 and Bi-2201 in the ultimate 2D limit.