Dielectric Dispersion of Valence Fluctuation Compound Sm3Se4

Hideaki Goto, Kenzo Baba, Terutaka Goto, Shintaro Nakamura, Akira Tamaki, Akira Ochiai, Takashi SuzuKi, Tadao Kasuya

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The dielectric response of valence fluctuation compound Sm3Se4 has been measured in the frequency range from 20 Hz up to 1 GHz. The resultant response of Sm3Se4 is described by a superposition of two independent dispersions with the Cole-Cole type, which are given by the valence fluctuating state in Sm3Se4 crystal with vacancies. The phase angle θ=90° for the admittance of Sm3Se4 at low temperatures leads the absence of free carrier Uke in an ideal capacitor. Similar behavior on Sm2Se3 is also presented.

Original languageEnglish
Pages (from-to)1365-1371
Number of pages7
JournalJournal of the Physical Society of Japan
Volume62
Issue number4
DOIs
Publication statusPublished - 1993

Keywords

  • Sm2Se3
  • Sm3Se4
  • dielectric dispersion
  • valence fluctuation

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