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VOLUME 75 (2002) | ISSUE 2 | PAGE 96
Ultrafast structural transformations in graphite
PACS: 63.90.+t, 78.90.+t
Abstract
Femtosecond laser-induced structural transitions in graphite were studied with time-resolved optical anisotropy measurements. The decay of the anisotropic reflectivity seems to indicate a loss of long-range order on a sub-picosecond time-scale, which is much faster than the electron-phonon relaxation time. This observation confirms a non-thermal nature of the structural transition.