Topic: High-Tc superconductivity by metallizing the sigma-bonding electrons
Speaker: Prof. Tao Xiang
Coordinates: Classroom 5407, 3pm , Friday , Nov. 13
Abstract: The sigma-bonding electrons have large binding energy and are stabilized by strong electron-phonon interaction. If one can lift the sigma-bonding band up to the Fermi level, by chemical doping or other charging effects, the strong binding energy is released, but the residual electron-phonon interaction can still be very strong. This provides a universal channel for hunting high-Tc superconductors.