Electronic phase transition and an anomalous ordered phase in Ba 2Ti13O22 with 3d1 ions on a triangle-based lattice

K. Takayama, T. Koyama, S. Mori, K. Kato, M. Takata, J. Fujioka, Y. Tokura, J. Miyazaki, T. Katsufuji

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Abstract

We found that Ba2Ti13O22 with Ti3 + (3d1) ions on a triangle-based lattice exhibits a phase transition at Tc∼200 K, below which the increase of electrical resistivity and decrease of magnetic susceptibility were observed. Transmission electron microscopy and optical reflectivity measurements indicate that the low-temperature phase of the present compound shares characteristics in common with a charge-density-wave state with remnant carriers, although a commensurate wave vector of the modulation and a linear temperature dependence of the magnetic susceptibility below Tc suggest an exotic ordered state.

Original languageEnglish
Article number196405
JournalPhysical Review Letters
Volume110
Issue number19
DOIs
Publication statusPublished - 2013 May 7

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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