@article{ISI:000294132600007,
 abstract = {We calculate the optical conductivity sigma(omega) for doped rare-earth
manganites based on the recently proposed microscopic ``two fluid″
l-b model. We study the temperature dependence of sigma(omega) for
La0.825Sr0.175MnO3, which has a metallic ground state. At low
temperatures, the calculated sigma(omega) shows a ``two-peak″
structure consisting of a far-infrared coherent Drude peak and a broad
mid-infrared ``polaron″ peak, as observed in experiments. Upon
heating, the Drude peak rapidly loses spectral weight, and sigma(omega)
crosses over to having just a single broad mid-infrared peak. The
temperature dependence of the mid-infrared peak and the spectral weight
transfer between the two peaks are also in agreement with experimental
findings. We also study the doping dependence of sigma(omega) for the
same compound. The integrated spectral weight under the Drude peak
increases rapidly as the doping level is increased from an underdoped,
insulating state (x = 0.1) to a highly doped, metallic state (x = 0.3),
again in agreement with trends seen experimentally.},
 article-number = {085115},
 author = {Pakhira, Nandan and Krishnamurthy, H. R. and Ramakrishnan, T. V.},
 doi = {10.1103/PhysRevB.84.085115},
 eissn = {2469-9969},
 issn = {2469-9950},
 journal = {PHYSICAL REVIEW B},
 month = {AUG 22},
 number = {8},
 times-cited = {2},
 title = {Optical conductivity of perovskite manganites},
 unique-id = {ISI:000294132600007},
 volume = {84},
 year = {2011}
}