Two-Dimensional High-Tc Superconductivity in Monolayer Cuprates and Beyond

Event Date:
2026-10-15T10:00:00
2026-10-15T11:00:00
Event Location:
BRIM 311
Speaker:
Yuanbo Zhang (Fudan University)
Related Upcoming Events:
Condensed Matter Seminars
Intended Audience:
Graduate
Local Contact:

Sarah Burke

Event Information:

Copper oxide high-temperature superconductors share a layered structure, raising the question of whether superconductivity can emerge in an isolated monolayer. We investigate the electronic structure of monolayer Bi-2212 and Bi-2201, demonstrating through STM/STS that the full suite of bulk phases—including high-Tc superconductivity, pseudogap, and charge order—persists in the extreme 2D limit. These results indicate that superconductivity in these materials is essentially a two-dimensional phenomenon.
However, extending this research to other high-Tc material systems is often hindered by extreme environmental sensitivity. To address this, we have developed an integrated fabrication platform operating entirely under ultra-high vacuum (with base pressure below 5×10−10 mbar). This system enables the exfoliation and assembly of atomically clean 2D heterostructures, providing a pristine environment to explore the next generation of 2D high-Tc superconductors.
 

Add to Calendar 2026-10-15T10:00:00 2026-10-15T11:00:00 Two-Dimensional High-Tc Superconductivity in Monolayer Cuprates and Beyond Event Information: Copper oxide high-temperature superconductors share a layered structure, raising the question of whether superconductivity can emerge in an isolated monolayer. We investigate the electronic structure of monolayer Bi-2212 and Bi-2201, demonstrating through STM/STS that the full suite of bulk phases—including high-Tc superconductivity, pseudogap, and charge order—persists in the extreme 2D limit. These results indicate that superconductivity in these materials is essentially a two-dimensional phenomenon.However, extending this research to other high-Tc material systems is often hindered by extreme environmental sensitivity. To address this, we have developed an integrated fabrication platform operating entirely under ultra-high vacuum (with base pressure below 5×10−10 mbar). This system enables the exfoliation and assembly of atomically clean 2D heterostructures, providing a pristine environment to explore the next generation of 2D high-Tc superconductors.  Event Location: BRIM 311