Abstract
The photoinduced changes in reflectivity (ΔR/R) at energies closed to the Mn d-d optical transition of HoMnO3 single crystal have been systematically measured from 300 K to 30 K by time-resolved optical pump-probe spectroscopy. The oscillation induced by the propagation of strain pulse was clearly observed in the ΔR/R signal with various probing wavelength. Moreover, the different relaxation processes of photoexcited carriers with in various wavelengths may be led by the blue shift of Mn3+ d level.
Original language | English |
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Article number | 042180 |
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Journal of Physics: Conference Series |
Volume | 150 |
Issue number | 4 |
DOIs | |
State | Published - 6 Aug 2009 |