Electron Band Structure of C60 Single Crystal Using Synchrotron Radiation
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BAO Shining,
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HE Peimo,
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XU Yabo,
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DONG Yuhui,
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QIAN Haijie,
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JIA Jinfeng,
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YANG Yi,
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K. Yibulaxin,
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LIU Fengqin,
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LU Sihua,
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WU Sicheng
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Abstract
Electron band structure of C60 single crystal has been investigated using synchrotron radiation. On the cleaved (111) surface of the C60 single crystal the angle-resolved ultraviolet photoelectron spectra were measured at normal emission with varying photon energy from 12.7 to 28.2eV. The valence band dispersions in L-r-L direction were successfully observed. The dispersions are 0.14 and 0.17eV for the highest occupied molecular orbitals (HOMO) and HOMO-1 derived band respectively.
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