Correlation effects in Yb4(As0.88Sb0.12)3 and Yb4(As0.71Sb0.29)3

R. Pittini, M. Ikezawa, A. Ochiai, T. Suzuki

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The 4f correlations in Yb4(As0.88Sb0.12)3 and Yb4(As0.71Sb0.29)3 give rise to an exceptional field-dependence of the optical reflectivity, measured for photon energies between 3 meV and 0.8 eV at 15 K under magnetic fields up to 6 T. From the optical spectra, the energy difference between the occupied and empty 4f14 state in these materials is estimated to be 0.42 eV. Furthermore, we have detected a strongly field dependent Drude-like absorption in the far infrared and an unusual field enhancement of the phonon peaks.

Original languageEnglish
Pages (from-to)584-586
Number of pages3
JournalPhysica B: Condensed Matter
Publication statusPublished - 1998 May 29
Externally publishedYes


  • 4f correlation
  • Magneto-optics
  • Spin polarization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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