Imaging the surface state of Cu(111)

We have studied the surface state of Cu(l l l) using an ellipsoidal-mirror analyzer which gives two dimensional images of photoelectron intensity versus emission angle. By combining these images, we have obtained the surface-state dispersion in three dimensional E versus k space. We have also studied the bulk Fermi surface of Cu(1 0 0). Our results are in excellent agreement with previous studies and provide a new perspective on studies of surface electronic structure. © 1994, American Vacuum Society. All rights reserved