Abstract

Sub-picosecond quasiparticle dynamics of the layered manganite La1.4Sr1.6Mn2O7 and the perovskite manganite La0.7Ca0.3MnO3 are investigated, indicating relaxation proceses corresponding to the redressing time of a photoexcited electron to its polaronic ground state.

© 2006 Optical Society of America

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