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

Title data

Sagar, Dodderi M. ; Tsvetkov, Artem A. ; Fausti, Daniele ; van Smaalen, Sander ; van Loosdrecht, Paul H. M.:
Coherent amplitudon generation in blue bronze through ultrafast interband quasi-particle decay.
In: Journal of Physics: Condensed Matter. Vol. 19 (2007) Issue 34 . - p. 346208.
ISSN 1361-648X
DOI: https://doi.org/10.1088/0953-8984/19/34/346208

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 26 Feb 2016 08:29
Last Modified: 29 Mar 2016 08:08
URI: https://eref.uni-bayreuth.de/id/eprint/31177