Angle-dependent oscillations in valence-band photoemission intensity of C60

被引：7

作者：

He, S. ^{[1
]}

Arita, M.

Namatame, H.

Taniguchi, M.

Li, H-N

Li, H-Y

机构：

[1] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima, Hiroshima 7398526, Japan

[2] Hiroshima Univ, Grad Sch Sci, Higashihiroshima, Hiroshima 7398526, Japan

[3] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 02期

关键词：

D O I：

10.1088/0953-8984/19/2/026202

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

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.

引用

页数：8

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