Origin of the lambda transition in liquid sulfur (Articolo in rivista)

Type
Label
  • Origin of the lambda transition in liquid sulfur (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.99.025701 (literal)
Alternative label
  • Scopigno, T; Yannopoulos, SN; Scarponi, F; Andrikopoulos, KS; Fioretto, D; Ruocco, G (2007)
    Origin of the lambda transition in liquid sulfur
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Scopigno, T; Yannopoulos, SN; Scarponi, F; Andrikopoulos, KS; Fioretto, D; Ruocco, G (literal)
Pagina inizio
  • 025701-1 (literal)
Pagina fine
  • 025701-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Roma La Sapienza, Res Ctr, SOFT INFM CNR, I-00185 Rome, Italy; FORTH, ICE HT, GR-26504 Patras, Greece; Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy; Aristotle Univ Thessaloniki, Sch Technol, Div Phys, GR-54124 Thessaloniki, Greece; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy (literal)
Titolo
  • Origin of the lambda transition in liquid sulfur (literal)
Abstract
  • Developing a novel experimental technique, we applied photon correlation spectroscopy using infrared radiation in liquid sulfur around T-lambda, i.e., in the temperature range where an abrupt increase in viscosity by 4 orders of magnitude is observed upon heating within few degrees. This allowed us-overcoming photoinduced and absorption effects at visible wavelengths-to reveal a chain relaxation process with characteristic time in the millisecond range. These results do rehabilitate the validity of the Maxwell relation in sulfur from an apparent failure, allowing rationalizing of the mechanical and thermodynamic behavior of this system within a viscoelastic scenario. (literal)
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