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HYBRIDIZATION BETWEEN4f-5dSTATES INErAs(100)

Author

Listed:
  • CHUN-GANG DUAN

    (Department of Physics, University of Nebraska at Omaha, Omaha, Nebraska 68182-0266, USA)

  • TAKASHI KOMESU

    (Department of Physics and Astronomy and the Center for Materials Research and Analysis University of Nebraska-Lincoln, Lincoln, NE 68588-0111, USA)

  • HAE-KYUNG JEONG

    (Department of Physics and Astronomy and the Center for Materials Research and Analysis University of Nebraska-Lincoln, Lincoln, NE 68588-0111, USA)

  • C. N. BORCA

    (Department of Physics and Astronomy and the Center for Materials Research and Analysis University of Nebraska-Lincoln, Lincoln, NE 68588-0111, USA)

  • WEI-GUO YIN

    (Department of Physics, University of Nebraska at Omaha, Omaha, Nebraska 68182-0266, USA)

  • JIANJUN LIU

    (Department of Physics, University of Nebraska at Omaha, Omaha, Nebraska 68182-0266, USA)

  • W. N. MEI

    (Department of Physics, University of Nebraska at Omaha, Omaha, Nebraska 68182-0266, USA)

  • P. A. DOWBEN

    (Department of Physics and Astronomy and the Center for Materials Research and Analysis University of Nebraska-Lincoln, Lincoln, NE 68588-0111, USA)

  • A. G. PETUKHOV

    (Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701-3995, USA)

  • B. D. SCHULTZ

    (Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, MN 55455, USA)

  • C. J. PALMSTRØM

    (Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, MN 55455, USA)

Abstract

Generally in both elemental and compound rare earth systems, the4flevels are treated as core states with little interaction with the5dhybrid conduction and valence band states. In the present study, the band dispersions of the rare-earth pnictide erbium arsenide(ErAs)are observed to be perturbed from this expectation. Both photoemission symmetry selection rules andab initiocalculations provide evidences of the4f-5dhybridization. This finding is also supported by thef–fresonant transition excitation energy shifts in characteristic electron-energy-loss spectroscopy (EELS).

Suggested Citation

  • Chun-Gang Duan & Takashi Komesu & Hae-Kyung Jeong & C. N. Borca & Wei-Guo Yin & Jianjun Liu & W. N. Mei & P. A. Dowben & A. G. Petukhov & B. D. Schultz & C. J. Palmstrøm, 2004. "HYBRIDIZATION BETWEEN4f-5dSTATES INErAs(100)," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 11(06), pages 531-539.
    • Handle: RePEc:wsi:srlxxx:v:11:y:2004:i:06:n:s0218625x04006451
    DOI: 10.1142/S0218625X04006451
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