Spin-orbital physics in the optical conductivity of quarter-(5)

Using finite-temperature diagonalization we investigate the optical conductivity $\sigma(\omega)$ and spin-orbital dynamics in the CE phase of half-doped manganites. We find $\sigma(\omega)$ characterized by a broad spectrum with pronounced optical gap due

5

[24]J.Ba la,A.M.Ole´s,andG.A.Sawatzkyibid.63,134410

(2001).