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The magneto-optical Kerr spectra of the ternary uranium compound UAsSe are investigated using first-principles energy-band theory. Within a band-like description of the 5f electrons, good agreement with the measured optical spectra is obtained. UAsSe is therefore the first uranium compound where density functional theory in the local-density approximation satisfactorily explains the magneto-optical Kerr spectra. This is further evidence for at least partially itinerant 5f electrons in UAsSe, in spite of it frequently being characterized as a localized 5f electron system. It is suggested that the 5f electrons are delocalized in planes perpendicular to the c-axis and that the magneto-optical Kerr spectra are extremely anisotropic.

Additional information

Authors: ANTONO V V N, Academy of Sciences of Ukraine, Institute of Metal Physics, Kiev UA);OPPENEER P M, University of Technology, Max-Planck-Research Group, Dresden (DE);KRAFT T, University of Technology, Max-Planck-Research Group, Dresden (DE);ESCHRIG H, University of Technology, Max-Planck-Research Group, Dresden (DE);BROOKS M S S, JRC Karlsruhe (DE)
Bibliographic Reference: Article: Physical Review B Condensed Matter
Record Number: 199611022 / Last updated on: 1996-09-30
Original language: en
Available languages: en
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