Coupling between Mott excitation and d-d transitions in CoV2 O4

H. Nishihara, A. Furuhashi, N. Yamaguchi, R. Koborinai, T. Katsufuji

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We studied the optical properties of CoV2O4, in which a broad spectrum arising from the Mott excitation of the V d states and sharp peaks from the intra-atomic d-d transitions in the Co ions coexist. We found that the width of the d-d transition peaks decreases and that Fano resonance appears in the steady-state optical spectrum with decreasing temperature. We also found that the width of the d-d transition peaks increases less than 1 ps after a pump pulse is applied to the Mott excitation. These results indicate that the Mott excitation and the d-d transitions are strongly coupled in this compound.

本文言語English
論文番号140401
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
92
14
DOI
出版ステータスPublished - 2015 10月 1

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

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