Ultrafast melting of charge ordering in LuFe 2O 4 probed by terahertz spectroscopy

H. Itoh, K. Itoh, K. Anjyo, H. Nakaya, H. Akahama, D. Ohishi, S. Saito, T. Kambe, S. Ishihara, N. Ikeda, S. Iwai

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Ultrafast terahertz response of charge ordering (CO) in LuFe 2O 4 was investigated by near-infrared-pump (1.55 eV) and terahertz-probe (2-9 meV) spectroscopy. Photoinduced absorption observed immediately (1 ps) after the photoexcitation was attributed to photoinduced melting of the CO. The charge dynamics thereafter can be characterized by subsequent development of the photoinduced conductivity in the low-energy region (2-3 meV), implying the formation of a metallic state.

Original languageEnglish
Pages (from-to)149-151
Number of pages3
JournalJournal of Luminescence
Publication statusPublished - Jan 2013


  • Charge ordering
  • Iron oxide
  • Terahertz spectroscopy
  • Ultrafast spectroscopoy

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • General Chemistry
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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