Electronic structure and photoemission studies on Kondo semimetal U\(\mathsf{_2}\)Ru\(\mathsf{_2}\)Sn

  • G. Chelkowska
  • J. A. MorkowskiEmail author
  • A. Szajek
  • J. Stepien-Damm
  • R. Troc


Electronic structure is studied of the compound U2Ru2Sn showing Kondo type anomalies. The X-ray photoemission spectrum (XPS) on a single crystal was measured and the crystal structure refinement was done. The electronic band structure was calculated by the tight-binding linear muffin-tin orbital method in the atomic sphere approximation, with non-local corrections to the exchange-correlation potential and spin-orbit effects included. The XPS valence band is well reproduced by the calculated one. Calculations suggest metallic character of U2Ru2Sn and give the electronic specific heat coefficient by a factor 1.4 larger than the experimental value reported in literature.


Electronic Band Structure Orbital Method Sphere Approximation Atomic Sphere Metallic Character 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • G. Chelkowska
    • 1
  • J. A. Morkowski
    • 2
    Email author
  • A. Szajek
    • 2
  • J. Stepien-Damm
    • 3
  • R. Troc
    • 3
  1. 1.A. Chelkowski Institute of PhysicsSilesian UniversityKatowicePoland
  2. 2.Institute of Molecular PhysicsPolish Academy of SciencesPoznanPoland
  3. 3.W. Trzebiatowski Institute of Low Temperature and Structure ResearchPolish Academy of SciencesWroclawPoland

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