Pressure-induced metal-insulator transition in the itinerant antiferromagnet Nb12-xTixO29 (x = 0 and 0.2)

Takashi Naka, Takayuki Nakane, Yuji Furukawa, Tadafumi Adschiri, Akiyuki Matsushita

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1 Citation (Scopus)

Abstract

We have carried out resistivity measurements on itinerant antiferromagnets Nb12-xTixO29 (x = 0 and 0.2) under pressure up to 2.5 GPa in order to investigate the pressure effects on these novel magnetic and metallic behaviors. The resistivity-temperature curves for both systems show metallic behavior at lower pressure, while the resistivity increases with decreasing temperature at higher pressure. These results indicate that a metal-insulator transition is induced by the application of the pressure in both systems. We will discuss the origin of the metal-insulator transition in terms of charge ordering and pressure-induced amorphization as have been suggested in other niobium oxides.

Original languageEnglish
Pages (from-to)501-503
Number of pages3
JournalMaterials Transactions
Volume47
Issue number3
DOIs
Publication statusPublished - 2006 Mar

Keywords

  • Amorphization
  • Charge ordering
  • Itinerant magnetism

ASJC Scopus subject areas

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

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