The vanadium Magnéli phases VnO2n-1

Udo Schwingenschloegl*, Volker Eyert

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

122 Scopus citations

Abstract

To compare the metal-insulator transitions (MITs) of VO2 and V2O3 we analyze the relations between the structural and electronic properties of the vanadium Magnéli phases. These materials set up the homologous series VnO2n-1 (3 ≤ n ≤ 9) and have crystal structures comprising typical dioxide-like and sesquioxide-like regions. As the MITs of the vanadium Magnéli phases are accompanied by structural transformations, we are able to discuss the effects of characteristic changes in the local atomic environments. The systematic investigation of the transport properties is based on a new and unifying description of the crystal structures of the Magnéli phases including VO2 and V 2O3. Our results lead to a comprehensive understanding of the MITs in the Magnéli class and shed new light on the role of particular electronic states for the MIT of V2O3.

Original languageEnglish (US)
Pages (from-to)475-510
Number of pages36
JournalAnnalen der Physik (Leipzig)
Volume13
Issue number9
DOIs
StatePublished - Sep 1 2004

Keywords

  • Magnéli series
  • Transition metal oxides
  • Vanadium dioxide
  • Vanadium sesquioxide

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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