Anomaly of the rotational nonergodicity parameter of glass formers probed by high field electron paramagnetic resonance (Articolo in rivista)

Type
Label
  • Anomaly of the rotational nonergodicity parameter of glass formers probed by high field electron paramagnetic resonance (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2973660 (literal)
Alternative label
  • Bercu V.; Martinelli M.; Massa C.A.; Pardi L.A.; Rossler E.A.; Leporini D. (2008)
    Anomaly of the rotational nonergodicity parameter of glass formers probed by high field electron paramagnetic resonance
    in The Journal of chemical physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bercu V.; Martinelli M.; Massa C.A.; Pardi L.A.; Rossler E.A.; Leporini D. (literal)
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  • http://jcp.aip.org/resource/1/jcpsa6/v129/i8/p081102_s1 (literal)
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  • 129 (literal)
Rivista
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  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Bercu, V.; Leporini, D.] Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy; [Bercu, V.; Martinelli, M.; Massa, C. A.; Pardi, L. A.] CNR, IPCF, I-56124 Pisa, Italy; [Bercu, V.] Univ Bucharest, Dept Phys, RO-76900 Bucharest, Romania; [Roessler, E. A.] Univ Bayreuth, D-95440 Bayreuth, Germany; [Leporini, D.] CNR, INFM, SOFT, I-56127 Pisa, Italy (literal)
Titolo
  • Anomaly of the rotational nonergodicity parameter of glass formers probed by high field electron paramagnetic resonance (literal)
Abstract
  • Exploiting the high angular resolution of high field electron paramagnetic resonance measured at 95, 190, and 285 GHz we determine the rotational nonergodicity parameter of different probe molecules in the glass former o-terphenyl and polybutadiene in a model-independent way. Our results clearly show a characteristic change in the temperature of the nonergodicity parameter proving a rather sharp dynamic crossover in both systems, in contrast to previous results from other techniques. (c) 2008 American Institute of Physics. (literal)
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