Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1080/09500340903541072 (literal)

Alternative label

• B. Mansart, D. Boschetto, A. Sambri, R. Malaquias, F. Miletto Granozio, U. Scotti di Uccio, P. Metcalfe, M. Marsia (2010)
  Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations
  in Journal of modern optics (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• B. Mansart, D. Boschetto, A. Sambri, R. Malaquias, F. Miletto Granozio, U. Scotti di Uccio, P. Metcalfe, M. Marsia (literal)

Pagina inizio

• 959 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 57 (literal)

Rivista

• Journal of modern optics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 11 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• a Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France b Laboratoire d'Optique Appliquée, ENSTA, CNRS, Ecole Polytechnique, 91761 Palaiseau, France c CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy d Dipartimento Scienze Fisiche, Universitá di Napoli 'Federico II', Complesso Universitario Monte S. Angelo, Napoli 80126, Italy e Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA (literal)

Titolo

• Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations (literal)

Abstract

• We describe some general features in the transient behaviour of strongly correlated transition metal oxides, following ultrafast excitation by a femtosecond laser pulse. Our analysis is based on time-resolved reflectivity measurements on (V1-x Cr x )2O3, a prototype Mott-Hubbard material, and the manganite compound (La0.67Sr0.33)MnO3, performed over a time window of several tenths of ps. We point out the contribution of coherent lattice oscillations-both optical and acoustic-to the overall signal, and show how they can depend on the crystallographic orientation of the material with respect to the laser beam wavevector and polarisation. In particular, an acoustic wave is always found to be present in our measurements, and we show that its oscillating behaviour is superposed to the average time evolution of the material, which can be instead related in different ways to its electronic properties and thermodynamic phase. All these effects are to be taken into account in any further analysis leading to the estimation of relevant physical parameters for correlated materials, and they appear to play a significant role not only for reflectivity techniques, but also in other kinds of ultrafast pump-probe experiments. (literal)

Autore CNR

• FABIO MILETTO GRANOZIO (Unità di personale interno)
• UMBERTO SCOTTI DI UCCIO (Persona)

Insieme di parole chiave

• Keywords of "Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• FABIO MILETTO GRANOZIO (Unità di personale interno)
• UMBERTO SCOTTI DI UCCIO (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of modern optics (Rivista)

Insieme di parole chiave di

• Keywords of "Ultrafast dynamical response of strongly correlated oxides: role of coherent optical and acoustic oscillations" (Insieme di parole chiave)