Abstract
We report a study of the ultrafast single particle dynamics in quasi-one-dimensional whisker crystals using a two-color pump-probe measurement. A selective enhancement of the relaxation dynamics connected with one of the two charge-density-wave (CDW) phases was realized by tuning the probe energy to around , in which the temperature dependence across the corresponding phase transition shows a pronounced anomaly. A similar selective excitation was possible in the coherent CDW oscillation.
- Received 27 October 2006
DOI:https://doi.org/10.1103/PhysRevB.75.115120
©2007 American Physical Society