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Valence band photoemission of Yb2.75C60

Li, H. N. (author)
He, Sailing (author)
Li, H. Y. (author)
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, 2004
2004
Chinese.
In: Wuli xuebao. - : Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences. - 1000-3290. ; 53:1, s. 244-247
  • Journal article (peer-reviewed)
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  • Valence-band electronic density of states of Yb2.75C60 thin films was measured by the ultraviolet photoemission spectrum technique. The phase-pure Yb2.75C60 sample was characterized by the C 1s XPS measurements. The result indicates Yb2.75C60 has no Fermi edge and thus is semiconductor. The hybridization between 6s state of Yb and the LUMO band of C60 cannot be considered to be negligible. Some Yb 6s electrons occupy the Yb-C60 covalent band in Yb2.75C60.

Keyword

Yb2.15C60
photoemission spectra
electronic density of states
electronic-structure
doped c-60
electrical-resistivity
single-crystals
superconductivity
fulleride
films
photoelectron
stoichiometry
spectroscopy

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art (subject category)

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Li, H. N.
He, Sailing
Li, H. Y.
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Wuli xuebao
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Royal Institute of Technology

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