"Enhancement of superconductivity by frustrating the charge order"

Zi-Xiang Li: Marvin L. Cohen, and Dung-Hai Lee; Physical Review B, 12/04/19.

Additional Authors: Marvin L. Cohen, and Dung-Hai Lee

Abstract:

We study strong electron-phonon interacting systems where the geometry of the crystalline lattice frustrates the formation of charge order. Our results show that under such condition, high-Tc superconductivity can occur in a wide range of electron-phonon coupling strengths. This result is obtained by studying the Holstein model on triangular lattice using sign-problem-free quantum Monte Carlo method.