Pairing state in the ruthenocuprate superconductor RuSr2GdCu2O8: A point-contact Andreev reflection spectroscopy study (Articolo in rivista)

Type

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

Label

• Pairing state in the ruthenocuprate superconductor RuSr2GdCu2O8: A point-contact Andreev reflection spectroscopy study (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

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

• 10.1103/PhysRevB.73.064514 (literal)

Alternative label

• Piano, S; Bobba, F; Giubileo, F; Cucolo, AM; Gombos, M; Vecchione, A (2006)
  Pairing state in the ruthenocuprate superconductor RuSr2GdCu2O8: A point-contact Andreev reflection spectroscopy study
  in Physical review. B, Condensed matter and materials physics; American Physical Society (APS), College Pk (Stati Uniti d'America)
  (literal)

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

• Piano, S; Bobba, F; Giubileo, F; Cucolo, AM; Gombos, M; Vecchione, A (literal)

Pagina inizio

• 064514-1 (literal)

Pagina fine

• 064514-8 (literal)

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

• http://prb.aps.org/abstract/PRB/v73/i6/e064514 (literal)

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

• 73 (literal)

Rivista

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

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

• 8 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Univ Salerno, Dept Phys, I-84081 Baronissi, SA, Italy; Univ Salerno, INFM, CNR, SUPERMAT Lab, I-84081 Baronissi, SA, Italy (literal)

Titolo

• Pairing state in the ruthenocuprate superconductor RuSr2GdCu2O8: A point-contact Andreev reflection spectroscopy study (literal)

Abstract

• The results of point contact Andreev reflection spectroscopy on polycrystalline RuSr2GdCu2O8 pellets are presented. The wide variety of the measured spectra are all explained in terms of a modified Blonder-Tinkham-Klapwijk model considering a d-wave symmetry of the superconducting order parameter. Remarkably low values of the energy gap Delta=(2.8 +/- 0.2) meV and of the 2 Delta/k(B)T(c)similar or equal to 2 ratio are inferred. From the temperature evolution of the dI/dV vs V characteristics we extract a sublinear temperature dependence of the superconducting energy gap. The magnetic field dependence of the conductance spectra at low temperatures is also reported. From the Delta vs H evolution, a critical magnetic field H-c2 similar or equal to 30 T is inferred. To properly explain the curves showing gap-like features at higher voltages, we consider the formation of a Josephson junction in series with the point contact junction, as a consequence of the granularity of the sample. (literal)

Editore

• American Physical Society (APS) (Editore)

Prodotto di

• Interplay tra superconduttività e magnetismo (MD.P04.014.001) (Modulo)
• Fenomeni di trasporto in materiali superconduttori (MD.P04.015.001) (Modulo)

Autore CNR

• Fabrizio Bobba (Persona)
• FILIPPO GIUBILEO (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Pairing state in the ruthenocuprate superconductor RuSr2GdCu2O8: A point-contact Andreev reflection spectroscopy study" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• FILIPPO GIUBILEO (Unità di personale interno)
• Fabrizio Bobba (Persona)

Prodotto

• Fenomeni di trasporto in materiali superconduttori (MD.P04.015.001) (Modulo)
• Interplay tra superconduttività e magnetismo (MD.P04.014.001) (Modulo)

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

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

Editore di

• American Physical Society (APS) (Editore)

Insieme di parole chiave di

• Parole chiave di "Pairing state in the ruthenocuprate superconductor RuSr2GdCu2O8: A point-contact Andreev reflection spectroscopy study" (Insieme di parole chiave)