Electrical properties of polycrystalline CaB6 under high pressure and low temperature

Yan Li, Jie Yang, Xiaoyan Cui, Tingjing Hu, Cailong Liu, Yongjun Tian, Hongwu Liu, Yonghao Han, Chunxiao Gao

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Carrier behavior of CaB6 powders was investigated by using in situ Hall effect measurement under high pressure and resistivity property was detected under low temperature with microcircuit fabricated on diamond anvil cell. Carrier behavior was analyzed by carrier concentration and Hall coefficient. The variation of defects in the grain boundary region lead the carrier concentration and the Hall coefficient in the decompression process are much lower than that in the compression process. The resistivity depended temperature at various pressures indicated that CaB6 has a typical metallic behavior under high pressure.

Original languageEnglish
Pages (from-to)1162-1165
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume248
Issue number5
DOIs
Publication statusPublished - 2011 May

Keywords

  • Carrier concentration
  • Diamond anvil cell
  • In situ Hall effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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