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Electronic Structures of Fe$_{3-x}V$_x$Si Probed by Photoemission Spectroscopy

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 نشر من قبل Yitao Cui Dr.
 تاريخ النشر 2008
  مجال البحث فيزياء
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The electronic structures of the Heusler type compounds Fe$_{3-x}V$_x$Si in the concentration range between x = 0 and x = 1 have been probed by photoemission spectroscopy (PES). The observed shift of Si 2p core- level and the main valence band structres indicate a chemical potential shift to higher energy with increasing x. It is also clarified that the density of state at Fermi edge is owing to the collaboration of V 3d and Fe 3d derived states. Besides the decrease of the spectral intensity near Fermi edge with increasing x suggests the formation of pseudo gap at large x.



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