Time-resolved optical response of all-oxide YBa2Cu3O7/La0.7Sr0.3MnO3 proximitized bilayers (Articolo in rivista)

Type
Label
  • Time-resolved optical response of all-oxide YBa2Cu3O7/La0.7Sr0.3MnO3 proximitized bilayers (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.87.134514 (literal)
Alternative label
  • L. Parlato, 1 R. Arpaia, 1 C. De Lisio, 1 F. Miletto Granozio, 1 G. P. Pepe, 1 P. Perna, 2 V. Pagliarulo, 1 C. Bonavolonta', 1 M. Radovic, 3 Y. Wang, 4 Roman Sobolewski, 5, and U. Scotti di Uccio 1 (2013)
    Time-resolved optical response of all-oxide YBa2Cu3O7/La0.7Sr0.3MnO3 proximitized bilayers
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • L. Parlato, 1 R. Arpaia, 1 C. De Lisio, 1 F. Miletto Granozio, 1 G. P. Pepe, 1 P. Perna, 2 V. Pagliarulo, 1 C. Bonavolonta', 1 M. Radovic, 3 Y. Wang, 4 Roman Sobolewski, 5, and U. Scotti di Uccio 1 (literal)
Pagina inizio
  • 134514 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v87/i13/e134514 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 87 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 13 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 CNR-SPIN and Dipartimento di Scienze Fisiche, Complesso Universitario di Monte Sant'Angelo, Via Cinthia, I-80125 Napoli, Italy 2 IMDEA-Nanociencia, Campus Universidad Autonoma de Madrid, 28049 Madrid, Spain 3 Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland and Laboratory for Synchrotron and Neutron Spectroscopy, EPFL, Lausanne, Switzerland 4 Materials Science Graduate Program and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627-0231, USA 5 Institute of Electron Technology, PL-02668 Warszawa, Poland and the University of Rochester, Rochester, New York 14627-0231, USA (literal)
Titolo
  • Time-resolved optical response of all-oxide YBa2Cu3O7/La0.7Sr0.3MnO3 proximitized bilayers (literal)
Abstract
  • We present femtosecond pump-probe spectroscopy studies of time-resolved optical reflectivity of all-oxide YBa2Cu3O7/La0.7Sr0.3MnO3 (YBCO/LSMO) superconductor/ferromagnet (S/F) bilayers consisting of a 100-nm-thick YBCO base layer and either 10 or 35 nm LSMO cap thickness. At temperatures far below the YBCO superconducting transition T-C, samples with a 10 nm F overlayer show a photoresponse that is similar to, but faster than, pure-YBCO, 100-nm-thick reference samples, while close to T-C and above (up to similar to 160 K) we observe a signature of both the electronic and spin response that cannot be interpreted as an incoherent sum of contributions from the two layers. The photoresponse of the S/F structures with the 35-nm LSMO layer always qualitatively follows that of the pure LSMO, but with a shorter relaxation time. In all cases, the YBCO/LSMO nonequilibrium dynamics can be modeled using a generalized multitemperature model, which is a superposition of the dynamics of the three-temperature models that are used to describe the superconductor and ferromagnet subsystems, respectively. The long term of the photoresponse signal of the S/F bilayer can be well fitted with the two characteristic relaxation times. DOI: 10.1103/PhysRevB.87.134514 (literal)
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