Light-induced metal-insulator transition in Lu2V2O7

S. Shamoto, H. Tazawa, Y. Ono, T. Nakano, Y. Nozue, T. Kajitani

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13 Citations (Scopus)

Abstract

Ferromagnetic Mott-Hubbard insulator Lu2V2O7 has been studied under continuous Ar laser irradiation. One of the photon energies, i.e. E = 2.41 eV, corresponds to a transition from the lower Hubbard band of the V 3d orbital to the upper Hubbard band. Upon cooling, the activation-type electrical resistivity shows an anomalous drop within the temperature range of 70-130 K. Below the transition temperature, the resistivity shows no appreciable temperature dependence. The temperature increase due to the laser heating is estimated to be within the range of 15-35 K, which cannot be responsible for the observed anomalous drop of the resistivity. The metal-insulator transition is discussed in connection with the ferromagnetism of the present compound.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume62
Issue number1-2
DOIs
Publication statusPublished - 2001 Jan

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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