Angle-dependent oscillations in valence-band photoemission intensity of C(60)

作者：He S^*; Arita M; Namatame H; Taniguchi M; Li H N; Li H Y

来源：Journal of Physics: Condensed Matter , 2007, 19(2): 026202.

DOI：10.1088/0953-8984/19/2/026202

High-resolution angle-resolved photoelectron spectroscopy (ARPES) has been performed to investigate valence-band photoemission in C(60) single crystals, which were cleaved in ultra-high-vacuum systems. The results present angle-dependent modulations in intensities of valence-band photoemission of the C(60) single crystal. The observed intensity modulations are caused by polarization influence and photoelectron diffraction (PED) effects, of which the latter is also responsible for the similar oscillations produced by varying incident photon energies. The calculated results indicate that only photoelectrons scattered by the top hemisphere of C(60) molecules dominate the angle-dependent interference modulations.

• 出版日期2007-1-17
• 单位浙江大学