Optical probe of charge-spin-lattice dynamics in half-doped (formula presented)

K. Yamamoto*, K. Ishizaka, E. Saitoh, S. Shinomori, T. Tanabe, Takuro Katsufuji, Y. Tokura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We have investigated the charge-spin-ordering transition in (formula presented) by measurements of Raman and optical conductivity spectra. The checkerboard-type charge ordering below (formula presented) can be probed by activated phonon (formula presented) and (formula presented) and two-magnon (formula presented) modes in the infrared and Raman spectra as well as by formation of pseudogaps in the optical conductivity spectra. Besides, another (formula presented) Raman mode emerges below 150 K together with reduction of the optical gap, which can be attributed to another ordering process, i.e., the stripe formation.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number1
Publication statusPublished - 2003 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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