Photoemission Study of Diamond ( 100 ) Surface
نویسندگان
چکیده
The electronic structure of the diamond C(lOO)-(2x1)/(%2) has been investigated by means of angle-resolved photoelectron spectroscopy for the first time. A surfacerelated shift has been observed in the C 1s core level spectrum. The surface-state band dispersion was measured along the symmetry axis F-J’ in the surface Brillouin zone. For k,, = 0, there is a-very pronounced surface state 1.5 eV below Fermi level EF, and it disperses downwards with increasing k,,. Near the boundary of the surface Brillouin zone J’, we find two states with binding energies of 1.9 and 2.4 eV with respect to EF. Presented at the 39th National American Vacuum Society (AVS) Symposium, Chicago, II, November 9-13, 1992 *Work supported by the U.S. Department of Energy under Contract DE-AC03-76SFOO515
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