Spectral weight transfer and mass renormalization in LnNi2B2C (Ln = Y, La)

A. Fujimori, K. Kobayashi, Takashi Mizokawa, K. Mamiya, A. Sekiyama, H. Takagi, H. Eisaki, S. Uchida, R. J. Cava, J. J. Krajewski, W. F. Peck

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Abstract

We have studied the electronic structure of rare-earth Ni boro-carbides by high-resolution photoemission. The spectra of superconducting YNi2B2C and non-superconducting LaNi2B2C are remarkably similar in spite of large differences predicted by band-structure calculations. The disappearance of the peak in the density of states at the Fermi level is attributed to spectral weight transfer towards higher energies concomitant with the conduction-band mass renormalization.

Original languageEnglish
Pages (from-to)1875-1876
Number of pages2
JournalJournal of Physics and Chemistry of Solids
Volume56
Issue number12
Publication statusPublished - 1995 Dec
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)
  • Chemistry(all)
  • Electronic, Optical and Magnetic Materials

Cite this

Fujimori, A., Kobayashi, K., Mizokawa, T., Mamiya, K., Sekiyama, A., Takagi, H., Eisaki, H., Uchida, S., Cava, R. J., Krajewski, J. J., & Peck, W. F. (1995). Spectral weight transfer and mass renormalization in LnNi2B2C (Ln = Y, La). Journal of Physics and Chemistry of Solids, 56(12), 1875-1876.