TY - JOUR
T1 - Optical probe of charge-spin-lattice dynamics in half-doped (formula presented)
AU - Yamamoto, K.
AU - Ishizaka, K.
AU - Saitoh, E.
AU - Shinomori, S.
AU - Tanabe, T.
AU - Katsufuji, Takuro
AU - Tokura, Y.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.67.014414
DO - 10.1103/PhysRevB.67.014414
M3 - Article
AN - SCOPUS:85038332563
VL - 67
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 1
ER -