Layered ferromagnet/superconductor heterostructures: Nonequilibrium quasiparticle dynamics and photodetector applications (Articolo in rivista)

Type

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

Label

• Layered ferromagnet/superconductor heterostructures: Nonequilibrium quasiparticle dynamics and photodetector applications (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevB.78.174503 (literal)

Alternative label

• Pan, D; Pepe, GP; Pagliarulo, V; De Lisio, C; Parlato, L; Khafizov, M; Komissarov, I; Sobolewski, R (2008)
  Layered ferromagnet/superconductor heterostructures: Nonequilibrium quasiparticle dynamics and photodetector applications
  in Physical review. B, Condensed matter and materials physics
  (literal)

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

• Pan, D; Pepe, GP; Pagliarulo, V; De Lisio, C; Parlato, L; Khafizov, M; Komissarov, I; Sobolewski, R (literal)

Pagina inizio

• 174503-1 (literal)

Pagina fine

• 174503-7 (literal)

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

• 78 (literal)

Rivista

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

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

• 7 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• \"[Pan, D.; Khafizov, M.; Sobolewski, Roman] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA; [Pan, D.; Khafizov, M.; Komissarov, I.; Sobolewski, Roman] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA; [Komissarov, I.; Sobolewski, Roman] Univ Rochester, Dept Elect & Comp Engn, Rochester, NY 14627 USA; [Pepe, G. P.; Pagliarulo, V.; De Lisio, C.; Parlato, L.] Univ Naples Federico 2, Dipartimento Sci Fisiche, I-80125 Naples, Italy; [Pepe, G. P.; Pagliarulo, V.; De Lisio, C.; Parlato, L.] Univ Naples Federico 2, CNR INFM Coherentia, I-80125 Naples, Italy (literal)

Titolo

• Layered ferromagnet/superconductor heterostructures: Nonequilibrium quasiparticle dynamics and photodetector applications (literal)

Abstract

• Time-resolved optical pump-probe and photoimpedance studies of proximized ferromagnet/superconductor nanobilayers are presented. The weak ferromagnetic nature of an ultrathin Ni0.48Cu0.52 film makes it possible to observe the dynamics of the nonequilibrium superconductivity in NiCu/Nb hybrids through time-resolved measurements of a near-surface optical reflectivity change, which is generated by femtosecond optical pump pulses and discussed within a nonequilibrium two-temperature electron-heating model. We observed that the NiCu overlay significantly reduced the slow bolometric contribution present in the photoresponse of a pure Nb film, resulting in a strong enhancement of the nonequilibrium kinetic-inductive component of the transient photoimpedance, measured as an similar to 700-ps-wide voltage waveform generated across an optically excited current-biased NiCu/Nb bilayer microbridge. The sensitive picosecond photoresponse makes our NiCu/Nb heterostructures suitable for 'engineered' ultrafast superconducting photodetectors since the photoimpedance signals observed in plain Nb bridges were at least 10 ns long and were due to the light-induced simple-heating effect. (literal)

Prodotto di

• Fisica ed applicazioni di sistemi superconduttivi e magnetici (MD.P04.017.001) (Modulo)

Autore CNR

• Loredana Parlato (Persona)
• GIOVANNI PIERO PEPE (Unità di personale esterno)
• VITO PAGLIARULO (Unità di personale esterno)
• CORRADO DE LISIO (Persona)

Insieme di parole chiave

• Keywords of "Layered ferromagnet/superconductor heterostructures: Nonequilibrium quasiparticle dynamics and photodetector applications" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• Loredana Parlato (Persona)
• GIOVANNI PIERO PEPE (Unità di personale esterno)
• CORRADO DE LISIO (Persona)
• VITO PAGLIARULO (Unità di personale esterno)

Prodotto

• Fisica ed applicazioni di sistemi superconduttivi e magnetici (MD.P04.017.001) (Modulo)

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

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

Insieme di parole chiave di

• Keywords of "Layered ferromagnet/superconductor heterostructures: Nonequilibrium quasiparticle dynamics and photodetector applications" (Insieme di parole chiave)