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The magneto-optical Kerr spectra of the ternary uranium compound UAsSe were investigated using first-principles energy-band theory. Within a band-like description of the 5f electrons, excellent agreement with the measured optical spectra was obtained. UAsSe is therefore the first uranium compound where density-functional theory in the local-density approximation gives a fully satisfactory explanation of the magneto-optical Kerr spectra. This result puts forward further evidence for at last partially itinerant electron behaviour in UAsSe, in spite of it frequently being characterized as having localized electron behaviour.

Additional information

Authors: OPPENEER P M, University of Dresden, Max-Planck Research Group (DE);KRAFT T, University of Dresden, Max-Planck Research Group (DE);ESCHRIG H, University of Dresden, Max-Planck Research Group (DE);BROOKS M S S, JRC Karlsruhe (DE);ANTONOV V N, Academy of Sciences of Ukraine, Institute of Metal Physics, Kiev (UA)
Bibliographic Reference: Article: Physical Review B Condensed Matter (1996)
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