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Coherent amplitudon generation in blue bronze through ultrafast interband quasi-particle decay

Dodderi M. Sagar
•
Artem A. Tsvetkov
•
FAUSTI, DANIELE
altro
Paul H. M. van Loosdrecht
2007
  • journal article

Periodico
JOURNAL OF PHYSICS. CONDENSED MATTER
Abstract
The charge density wave system K(0.3)MoO(3) has been studied using variable pulse energy pump-probe spectroscopy, ellipsometry, and inelastic light scattering. The observed transient reflectivity response exhibits quite a complex behaviour, containing contributions due to quasi-particle excitations, coherent amplitudons and phonons, and heating effects. The generation of coherent amplitudons is discussed in terms of relaxation of photo-excited quasi-particles, and is found to be resonant with the interband plasmon frequency. Two additional coherent excitations observed in the transients are assigned to zone-folding modes of the charge density wave state.
DOI
10.1088/0953-8984/19/34/346208
Archivio
http://hdl.handle.net/11368/2335074
Diritti
metadata only access
Soggetti
  • Raman, amplitudon, ch...

Web of Science© citazioni
13
Data di acquisizione
Mar 9, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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