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RESEARCH PRODUCT
Secondary relaxation in the glass-transition regime of ortho-terphenyl observed by incoherent neutron scattering.
Winfried PetryF. FujaraM. KiebelEckhard BartschO. DebusHans Sillescusubject
Materials scienceCondensed matter physicsIncoherent scatterNeutron scatteringCondensed Matter::Disordered Systems and Neural NetworksCondensed Matter::Soft Condensed Mattersymbols.namesakechemistry.chemical_compoundchemistryCritical point (thermodynamics)TerphenylPicosecondsymbolsPhysics::Chemical Physicsvan der Waals forceGlass transitionSupercoolingdescription
We report on incoherent-neutron-scattering measurements in the supercooled regime of the van der Waals liquid ortho-terphenyl. A secondary localized relaxational process on the picosecond time scale is found. In accordance with mode-coupling theories of the glass transition, the relaxational dynamics around a critical temperature ${\mathit{T}}_{\mathit{c}}$ decomposes into two time regimes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-05-01 | Physical review. B, Condensed matter |