On the Dichotomy between the Nodal and Antinodal Excitations in High-temperature Superconductors

Research paper by Henry C. Fu, Dung-Hai Lee

Indexed on: 19 Jan '06Published on: 19 Jan '06Published in: Physics - Superconductivity


Angle-resolved photoemission data on optimally- and under-doped high temperature superconductors reveal a dichotomy between the nodal and antinodal electronic excitations. In this paper we propose an explanation of this unusual phenomenon by employing the coupling between the quasiparticle and the commensurate/incommensurate magnetic excitations.