Effect of Fe content on the crystal structure and the thermoelectric transport properties of CeyFexCo4 - XSb12

Xin Feng Tang, Li Dong Chen, Takashi Goto, Toshio Hirai, Run Zhang Yuan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Single-phase filled skutterudite compounds, CeyFexCo4 - xSb12 (x = 0 - 3.0, y = 0 - 0.14), were synthesized by a melting method. Effect of Fe content on Ce filling fraction, the crystal structure and the thermoelectric transport properties of CeyFexCo4 - xSb12 saturated by Ce were investigated. Ce filling fraction increased linearly with increasing Fe content. The lattice constants a of CeyFexCo4 - xSb12 increased with increasing Fe content and Ce filling fraction. All samples showed p-type conduction. Hall coefficient RH decreased with increasing Fe content. Hole concentration p and electrical conductivity σ increased with increasing Fe content. Seebeck coefficient α decreased with increasing Fe content. While Fe/ Co ratio was about 1.5/2.5, the lattice thermal conductivity (K1) reached the minimum values.

Original languageEnglish
Pages (from-to)2441-2442
Number of pages2
JournalWuli Xuebao/Acta Physica Sinica
Volume49
Issue number12
Publication statusPublished - 2000 Dec 1

Keywords

  • Crystal structure
  • Filled skutterudite compounds
  • Thermoelectric properties

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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