Valence Band Spectroscopy Using VUV5000

Application Note

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Valence band of the EuFe2As2 compound recorded with HeI (21.2 eV) and HeII (40.8 eV) light. Two distinct features, denoted A and B can be identified for the spectra. | © Scienta Omicron

Figure 1: Valence band of the EuFe2As2 compound recorded with HeI (21.2 eV) and HeII (40.8 eV) light. Two distinct features, denoted A and B can be identified for the spectra.

Author: Kalobaran Mait Institute: Tata Institute of Fundamental Research, India Institute of Physics Logo | © Institute of Physics Journal of Physics: Condensed Matter
Date: 2018
Instruments: VUV5k, R4000

The change in line shape and peak positions of valence band photoemission (PES) spectra due to change in excitation energy can be attributed to cross sections. This fact can be used in valence band studies to assign features to specific element and orbital configurations, as done by the group of Professor Maiti, using HeI (21.2 eV) and HeII (40.8 eV) light for determining the valence band composition of the EuFe2As2 compound.

VUV5k_R4000_2018_AppNote_3337.pdf