Evidence for the strain critical point in high T(c) superconductors (Articolo in rivista)

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  • Evidence for the strain critical point in high T(c) superconductors (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s100510070010 (literal)
Alternative label
  • Di Castro, D; Bianconi, G; Colapietro, M; Pifferi, A; Saini, NL; Agrestini, S; Bianconi, A (2000)
    Evidence for the strain critical point in high T(c) superconductors
    in The European physical journal. B, Condensed matter physics (Print); Springer, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Di Castro, D; Bianconi, G; Colapietro, M; Pifferi, A; Saini, NL; Agrestini, S; Bianconi, A (literal)
Pagina inizio
  • 617 (literal)
Pagina fine
  • 624 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 18 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 4 (literal)
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  • [ 1 ] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy [ 2 ] Univ Notre Dame, Dept Phys, Notre Dame, IN 46566 USA [ 3 ] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy [ 4 ] CNR, Area Ric, Ist Strutturist Chim, I-00016 Monterotondo, Italy [ 5 ] Unita INFM, I-00185 Rome, Italy [ 6 ] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy (literal)
Titolo
  • Evidence for the strain critical point in high T(c) superconductors (literal)
Abstract
  • We report experimental evidence fur the phase diagram of doped cuprate superconductors as a function of the micro-strain epsilon of the planar Cu-O bund length, measured by Cu K-edge EXAFS, and hole doping delta. The local lattice distortions are measured by EXAFS and the charge ordering is measured by synchrotron radiation diffuse X-ray diffraction. This phase diagram shows a QCP at P(epsilon (c)delta (c)) where for epsilon > epsilon (c) charge-orbital-spin stripes and free carriers co-exist. The superconducting phase occurs in the region of critical fluctuations around this QCP. Thr function T(c) (epsilon, delta) of two variables shows its maximum at the strain QCP. The critical fluctuations near tills strain QCP give the self-organization of a metallic superlattice of quantum wires \"superstripes\" that favors the amplification of the critical temperature. (literal)
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