Charge Ordering Fluctuation and Optical Pseudogap in La${}_{1-x}$Ca${}_x$MnO${}_3$

K. H. Kim, S. Lee, T. W. Noh +1

Optical spectroscopy was used to investigate the optical gap (2$\Delta$) due to charge ordering (CO) and related pseudogap developments with x and temperature (T) in La${}_{1-x}$Ca${}_x$M…