Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films (Articolo in rivista)

Type

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

Label

• Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

Alternative label

• Carpene, E; Mancini, E; Dallera, C; Brenna, M; Puppin, E; De Silvestri, S (2008)
  Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films
  in Physical review. B, Condensed matter and materials physics
  (literal)

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

• Carpene, E; Mancini, E; Dallera, C; Brenna, M; Puppin, E; De Silvestri, S (literal)

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

• 78 (literal)

Rivista

• Physical review. B, Condensed matter and materials physics (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• \"[Carpene, E.; Mancini, E.; Dallera, C.; Brenna, M.; Puppin, E.; De Silvestri, S.] Politecn Milan, Dipartimento Fis, ULTRAS CNR INFM, I-20133 Milan, Italy (literal)

Titolo

• Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films (literal)

Abstract

• The electronic and spin dynamics in thin iron films have been investigated by means of time-resolved reflectivity and time-resolved magneto-optical Kerr effect. Combining the two techniques, it is possible to clarify the role of electron-phonon and electron-magnon interactions on the ultrafast magnetization dynamics. In particular, we show that the rapid (similar to 100 fs) demagnetization is established at the electronic level through electron-magnon excitation, while the subsequent recovery of the spin order is attributed to the Elliott-Yafet spin-flip scattering process on a time scale slightly shorter than a picosecond. Both processes have characteristic time constants that undoubtedly differ from the measured electron-phonon coupling time of 240 fs. (literal)

Prodotto di

• Generazione di radiazione X ultrabeve (MD.P03.007.001) (Modulo)
• Fotonica ultrabreve dall'infrarosso al EUV: applicazioni a materiali e dispositivi per ICT, magnetismo, biomedicina e nanoscienze (MD.P03.008.001) (Modulo)

Autore CNR

• ETTORE CARPENE (Unità di personale interno)
• SANDRO DE SILVESTRI (Persona)
• CLAUDIA DALLERA (Persona)

Insieme di parole chiave

• Parole chiave di "Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films" (Insieme di parole chiave)

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Autore CNR di

• ETTORE CARPENE (Unità di personale interno)
• SANDRO DE SILVESTRI (Persona)
• CLAUDIA DALLERA (Persona)

Prodotto

• Fotonica ultrabreve dall'infrarosso al EUV: applicazioni a materiali e dispositivi per ICT, magnetismo, biomedicina e nanoscienze (MD.P03.008.001) (Modulo)
• Generazione di radiazione X ultrabeve (MD.P03.007.001) (Modulo)

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

• Physical review. B, Condensed matter and materials physics (Rivista)

Insieme di parole chiave di

• Parole chiave di "Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films" (Insieme di parole chiave)