Abstract
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 language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 67 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2003 Jan 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Yamamoto, K., Ishizaka, K., Saitoh, E., Shinomori, S., Tanabe, T., Katsufuji, T., & Tokura, Y. (2003). Optical probe of charge-spin-lattice dynamics in half-doped (formula presented). Physical Review B - Condensed Matter and Materials Physics, 67(1). https://doi.org/10.1103/PhysRevB.67.014414