Physics of magnetic phenomena: Investigation of electroconductivity of lithium pentaferrite

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Abstract

Using a double-probe spreading resistance measurement technique combined with a layer-by-layer analysis, temperature dependences of electroconductivity of polycrystalline lithium pentaferrite (LPF), which is produced via a ceramic-production technological process, are investigated. It is shown that the electroconductivity activation energy of LPF is controlled by the height of grain-boundary potential barrier due to different degrees of grain boundary and grain bulk oxidation. A relationship is established between the value of the electroconductivity activation energy of LPF and the processes of its oxygen exchange with the surrounding medium during thermal annealing.

Original languageEnglish
Pages (from-to)506-510
Number of pages5
JournalRussian Physics Journal
Volume49
Issue number5
DOIs
Publication statusPublished - 1 May 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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