Abstract
The infrared reflectivity of a single crystal is studied over a broad range of temperatures (78–340 K), magnetic fields (0–16 T), and wave numbers The optical conductivity gradually changes from a Drude-like behavior to a broad peak feature near in the ferromagnetic state below the Curie temperature Various features of the optical conductivity bear striking resemblance to recent theoretical predictions based on the interplay between the double exchange interaction and the Jahn-Teller electron-phonon coupling. A large optical magnetoconductivity is observed near
- Received 30 September 1998
DOI:https://doi.org/10.1103/PhysRevB.59.R697
©1999 American Physical Society