Temperature-dependent scanning tunneling spectroscopy on the Si(557)-Au surface
Temperature-dependent scanning tunneling spectroscopy on the Si(557)-Au surface
Room-temperature and low-temperature (77 K) scanning tunneling spectroscopy and voltage-dependent scanning tunneling microscopy data are used to study the local electronic properties of the quasi-one-dimensional Si(557)-Au surface in real space. A gapped local electron density of states near the $\overline{\ensuremath{\Gamma}}$ point is observed at different positions of the surface, i.e., …