First-Principles Local-Density Approximation Study of Electronic Structure in CeCoSi2

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概要

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• The first-principles band calculation of an itinerant cerium compound CeCoSi2 is performed using a relativistic LAPW method with exchange and correlation potentials within a local-density approximation (LDA). The c–$ f$ hybridized bands with a large dispersion form two-dimensional Fermi surface (FS). The FS formation and the band dispersion including the contribution from each orbital obtained by the LDA calculation are in a qualitatively agreement with Ce 3d–4f resonant angle-resolved photoemission spectra. The LDA calculation is a good starting point for the investigation of the electronic structure of the heavy-fermion Ce compounds.

• Physical Society of Japanの論文
• 2009-10-15

著者

• Yamagami Hiroshi

  Synchrotron Radiation Research Center Japan Atomic Energy Agency:department Of Physics Kyoto Sangyo

• Im Hojun

  Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea

• Yasui Akira

  Synchrotron Radiation Research Center, Japan Atomic Energy Agency, SPring-8, Sayo, Hyogo 679-5148

• Yamagami Hiroshi

  Synchrotron Radiation Research Center, Japan Atomic Energy Agency, SPring-8, Sayo, Hyogo 679-5148

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• Soft X-ray Absorption and Photoemission Studies of Ferromagnetic Mn-Implanted 3C-SiC
• First-Principles Local-Density Approximation Study of Electronic Structure in CeCoSi2

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