  We systematically investigated the superstructure evolution of Te atoms on
Au(111) substrate at different coverages. As revealed by low temperature
scanning tunneling microscopy and spectroscopy, Te atoms form one-dimensional
root3 R30{\deg} chains near 0.10 monolayer (ML). Two two-dimensional chiral
structures, (root111*root111)R4.7{\deg} and (3root21*3root21)R10.9{\deg}, can
be formed and their stability can be tuned by slightly adjusting the Te coverge
near 1/3 ML. A honeycomb-like superstructure is observed by further increasing
the coverage to 4/9 ML. An interfacial state emerges at ~-0.65 eV due to Te
adsorption on Au(111). The formation of these Te-induced high-order
superstructures is accompanied by relaxation of gold atoms in the surface
layer, indicating the strong Te-Au interaction.
