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Titolo:
COHERENT DYNAMIC STRUCTURE FACTOR OF ORTHOTERPHENYL AROUND THE MODE-COUPLING CROSSOVER TEMPERATURE T-C
Autore:
TOLLE A; SCHOBER H; WUTTKE J; FUJARA F;
Indirizzi:
INST MAX VON LAUE PAUL LANGEVIN,BP 156X F-38042 GRENOBLE FRANCE TECH UNIV MUNICH,PHYS DEPT E13 D-85747 GARCHING GERMANY UNIV DORTMUND,FACHBEREICH PHYS D-44221 DORTMUND GERMANY
Titolo Testata:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
fascicolo: 1, volume: 56, anno: 1997,
parte:, B
pagine: 809 - 815
SICI:
1063-651X(1997)56:1<809:CDSFOO>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEPOLARIZED-LIGHT-SCATTERING; SUPERCOOLED LIQUID-STATE; LENNARD-JONES SYSTEM; GLASS-TRANSITION; ORTHO-TERPHENYL; MOLECULAR-DYNAMICS; NEUTRON-SCATTERING; O-TERPHENYL; SECONDARY RELAXATION; POLYBUTADIENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
50
Recensione:
Indirizzi per estratti:
Citazione:
A. Tolle et al., "COHERENT DYNAMIC STRUCTURE FACTOR OF ORTHOTERPHENYL AROUND THE MODE-COUPLING CROSSOVER TEMPERATURE T-C", Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(1), 1997, pp. 809-815

Abstract

The coherent dynamic structure factor of supercooled orthoterphenyl has been measured by time-of-flight neutron scattering. The data extendprevious backscattering and spin-echo data towards shorter times. In the beta relaxation regime the two-step decay of density correlations can be described by the same master function as found before for self-correlations. We show that the mode-coupling crossover temperature T-ccan be determined from beta relaxation data alone. The wave-number dependence of the relaxation amplitude follows, to some extent, that of the static structure factor.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 22:13:07