A link between p-type electrical conduction and microwave dielectric loss In highly ordered Ba(Co1/3Nb2/3)O3 ceramics

Ming Li, Antonio Feteira, Mehdi Mirsaneh, Michael T. Lanagan, Derek C. Sinclair

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

BaCo1/3Nb2/303 ceramics, with a high density and a similar, high degree of 1:2 B-sitc cation ordering, exhibit very different quality factors, Q. The ceramics exhibit p-type behavior withhigher conductivity and lower Q for samples processed in O2as compared with those processed in air. It is proposed that unavoidable Co lossduring high-temperature ceramic processing leads to type doping that mustbe compensated by oxygen vacancies to impede hole formation. The composition exhibiting only intrinsic conduction and optimized Q is not achieved withprocessing in atmospheric oxygen due to filling of oxygen vacancies and hole formation during cooling.

Original languageEnglish (US)
Pages (from-to)1011-1014
Number of pages4
JournalJournal of Materials Research
Volume25
Issue number6
DOIs
StatePublished - Jun 1 2010

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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