Electronic phase transition in hollandite titanates BaxTi8 O16+δ

R. Murata, T. Sato, T. Okuda, Y. Horibe, H. Tsukasaki, S. Mori, N. Yamaguchi, K. Sugimoto, S. Kawaguchi, M. Takata, T. Katsufuji*

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

We studied the physical properties of hollandite titanates, BaxTi8O16+δ, which have double chains of edge-sharing TiO6 octahedra with d electrons in the t2g states. We found that there is an electronic phase transition at ∼220 K, at which various properties exhibit anomalies. This phase transition is characterized by a modulation in the TiO6 chains and a spectral weight transfer of over 2 eV in the optical conductivity spectrum, which are presumably caused by charge and orbital ordering of the Ti t2g electrons.

本文言語English
論文番号220408
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
92
22
DOI
出版ステータスPublished - 2015 12月 14

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Electronic phase transition in hollandite titanates BaxTi8 O16+δ」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル