Evidence of Doping-Dependent Pairing Symmetry in Cuprate Superconductors

N. -C. Yeh, C. -T. Chen, G. Hammerl +8

Scanning tunneling spectroscopy (STS) studies reveal long-range spatial homogeneity and predominantly $d_{x^2-y^2}$-pairing spectral characteristics in under- and optimally doped $…