Author/Authors :
Nagira، نويسنده , , M. and Sawada، نويسنده , , M. and Higashiguchi، نويسنده , , M. and Yaji، نويسنده , , K. and Moko، نويسنده , , T. and Ueno، نويسنده , , T. and Miura، نويسنده , , U. and Shimada، نويسنده , , K. and Kimura، نويسنده , , A. and Namatame، نويسنده , , H. and Taniguchi، نويسنده , , M.، نويسنده ,
Abstract :
We have performed an angle resolved photoemission spectroscopy with high energy and high momentum resolutions and have observed the k dependent energy dispersion curves of the striped Cu(1 1 0)(2 × 1)O surface. It is found that the Shockley surface state electron is confined in the clean surface along the perpendicular direction to the stripes and forms a quantum well state (QWS). It has also been clearly observed that an electron of Cu–O antibonding state is confined within the oxygen covered surface.
Keywords :
1 , Striped Cu(1 , 0)(2 , × , Angle resolved photoemission spectroscopy , 1)O surface , Quantum confinement state , Shockley surface state
