Photoemission and x-ray absorption study of MgC1-xNi3

J. H. Kim, J. S. Ahn, Jinsoo Kim, Min Seok Park, S. I. Lee, E. J. Choi, S. J. Oh

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23 Scopus citations


We investigated electronic structure of MgC1-xNi3 with photoemission and x-ray absorption spectroscopy. Both results show that overall band structure is in reasonable agreement with band structure calculations including the existence of von Hove singularity (vHs) near EF. However, we find that the sharp vHs peak theoretically predicted near the EF is substantially suppressed. As for the Ni core level and absorption spectrum, there exist the satellites of Ni 2p which have a little larger energy separation and reduced intensity compared to the case of Ni-metal. These facts indicate that correlation effects among Ni 3d electrons may be important to understand various physical properties.

Original languageEnglish
Article number172507
Pages (from-to)1725071-1725074
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number17
StatePublished - 1 Nov 2002


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