Effects of intermediate valence and Sm-Sm interactions on magnetic excitation spectra in (Sm,Y)S

Pavel A. Alekseev, Jean Michel Mignot, Elena V. Nefeodova, Kirill S. Nemkovski, Vladimir N. Lazukov, Akira Ochiai, Aleksandr V. Golubkov

Research output: Contribution to journalArticlepeer-review

Abstract

A dispersive two-branch structure in the magnetic excitation spectra is reported for mixed-valence Sm1-xYxS(0≤x≤0.33). This behavior is ascribed to Sm-Sm exchange interactions and discussed in connection with the possible formation of a local excitonic singlet ground state in this class of mixed-valence semiconductors.

Original languageEnglish
Pages (from-to)154-156
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2005 Apr 30

Keywords

  • (SmY)S
  • Inelastic neutron scattering
  • Magnetic correlations
  • Mixed valence

ASJC Scopus subject areas

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

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