Microwave conductivity of (AgI)1-x-(Ag2MoO4)x (x=0.25, 0.3, 0.35) glasses

Junichi Kawamura, Yasunao Oyama

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The complex permittivity and the conductivity of superionic conducting glasses (AgI)1-x-(Ag2MoO4)x (x=0.25, 0.3, 0.35) were measured at 10 GHz by means of the cavity perturbation technique. The temperature dependence of the observed microwave conductivity was expressed by the Arrhenius law with a small activation energy (ca. 0.09 eV) which was almost independent of the glass composition. This result suggests that the microwave conductivity is attributed to the local motion of mobile Ag+ ions surrounded by I- ions. On the other hand the dc conductivity is suppressed by the channel blocking effect due to oxide anions or Ag+ ions trapped by them. This result is consistent with the hypothesis that "αAgI" like clusters and/or diffusion paths exist in the glass.

Original languageEnglish
Pages (from-to)311-315
Number of pages5
JournalSolid State Ionics
Volume35
Issue number3-4
DOIs
Publication statusPublished - 1989 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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