Diamagnetic response and phase stiffness for interacting isolated narrow bands.

ABSTRACT: Superconductivity is a macroscopic manifestation of a quantum phenomenon where pairs of electrons delocalize and develop phase coherence over a long distance. A long-standing quest has been to address the underlying microscopic mechanisms that fundamentally limit the superconducting transition temperature, T_c. A platform which serves as an ideal playground for realizing "high"-temperature superconductors are materials where the electrons' kinetic energy is quenched and interactions provide the only energy scale in the problem. However, when the noninteracting bandwidth for a set of isolated bands is small compared to the interactions, the problem is inherently nonperturbative. In two spatial dimensions, T_c is controlled by superconducting p

SUBMITTER: Mao D 

PROVIDER: S-EPMC10089204 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature