guest ::
| Home > Publications database > The unimpressive origin of the apparent fragile-strong transition. > print |
| Home > Publications database > The unimpressive origin of the apparent fragile-strong transition. > print |
| 001 | 189036 | ||
| 005 | 20240619091132.0 | ||
| 037 | _ | _ | |a FZJ-2015-02293 |
| 100 | 1 | _ | |a Wuttke, Joachim |0 P:(DE-Juel1)131044 |b 0 |e Corresponding Author |u fzj |
| 111 | 2 | _ | |a XIV International Workshop on Complex Systems. |c Fai della Paganella |d 2015-03-22 - 2015-03-25 |w Italy |
| 245 | _ | _ | |a The unimpressive origin of the apparent fragile-strong transition. |
| 260 | _ | _ | |c 2015 |
| 336 | 7 | _ | |a Conference Presentation |b conf |m conf |0 PUB:(DE-HGF)6 |s 1429098058_26845 |2 PUB:(DE-HGF) |x Plenary/Keynote |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
| 336 | 7 | _ | |a Other |2 DataCite |
| 336 | 7 | _ | |a LECTURE_SPEECH |2 ORCID |
| 336 | 7 | _ | |a conferenceObject |2 DRIVER |
| 336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
| 520 | _ | _ | |a Supercooled water is suspected to undergo a fragile-strong transition (FST).Theoretical interest has been fostered by a possible connection with a Widomline emanating from the phase boundary between low and high densityamorphous ice. Experimental support for the FST has mostly come from high-resolution neutron spectroscopy. The FST appears as a kink in the temperaturedependence of a mean relaxation time <τ>. This interpretation depends criticallyon the assumption that the experiment sees one and the same relaxationprocess above and below the kink. Based on new backscattering spectra ofwater in carbon nanohorns we show that the contrary is the case.Formally, our fit function is the same as regularly used in support of a FST: a sumof a delta line, accounting for elastic scattering by the matrix, and a Kohlrauschspectrum. This model suffers from parameter degeneracies. Occam's razor tellsus to maximize constraints under minimal physical assumptions. We useharmonic extrapolations of the T dependent scattering intensity to fix theamplitudes in our delta-plus-Kohlrausch fits. We then identify two q,T regions thatadmit particularly stringent constraints, and a crossover regime in between. Inthis way, we find that quasielastic scattering reveals different physics in differentq,T regimes: At low T, it is dominated by localized motion; at high T by relaxation-coupled diffusion. |
| 536 | _ | _ | |a 6215 - Soft Matter, Health and Life Sciences (POF3-621) |0 G:(DE-HGF)POF3-6215 |c POF3-621 |x 0 |f POF III |
| 536 | _ | _ | |0 G:(DE-HGF)POF3-6G15 |x 1 |f POF III |c POF3-6G15 |a 6G15 - FRM II / MLZ (POF3-6G15) |
| 536 | _ | _ | |a 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) |0 G:(DE-HGF)POF3-6G4 |c POF3-623 |x 2 |f POF III |
| 650 | 2 | 7 | |a Condensed Matter Physics |0 V:(DE-MLZ)SciArea-120 |2 V:(DE-HGF) |x 1 |
| 650 | 2 | 7 | |a Soft Condensed Matter |0 V:(DE-MLZ)SciArea-210 |2 V:(DE-HGF) |x 0 |
| 650 | 1 | 7 | |a Basic research |0 V:(DE-MLZ)GC-2004-2016 |2 V:(DE-HGF) |x 2 |
| 650 | 1 | 7 | |a Others |0 V:(DE-MLZ)GC-180 |2 V:(DE-HGF) |x 1 |
| 650 | 1 | 7 | |a Soft Matter, Macromolecules, Complex fluids, Biophysics |0 V:(DE-MLZ)GC-140 |2 V:(DE-HGF) |x 0 |
| 693 | _ | _ | |a Forschungs-Neutronenquelle Heinz Maier-Leibnitz |e SPHERES: Backscattering spectrometer |f NL6S |1 EXP:(DE-MLZ)FRMII-20140101 |0 EXP:(DE-MLZ)SPHERES-20140101 |5 EXP:(DE-MLZ)SPHERES-20140101 |6 EXP:(DE-MLZ)NL6S-20140101 |x 0 |
| 700 | 1 | _ | |a Bellissent-Funel, Marie-Claire |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Kaneko, Katsumi |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Ohba, Tomonori |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Appavou, Marie-Sousai |0 P:(DE-Juel1)130507 |b 4 |u fzj |
| 700 | 1 | _ | |a Soininen, Antti |0 P:(DE-Juel1)158059 |b 5 |u fzj |
| 773 | _ | _ | |y 2015 |
| 909 | C | O | |o oai:juser.fz-juelich.de:189036 |p VDB:MLZ |p VDB |
| 910 | 1 | _ | |a Forschungszentrum Jülich GmbH |0 I:(DE-588b)5008462-8 |k FZJ |b 0 |6 P:(DE-Juel1)131044 |
| 910 | 1 | _ | |a Forschungszentrum Jülich GmbH |0 I:(DE-588b)5008462-8 |k FZJ |b 4 |6 P:(DE-Juel1)130507 |
| 910 | 1 | _ | |a Forschungszentrum Jülich GmbH |0 I:(DE-588b)5008462-8 |k FZJ |b 5 |6 P:(DE-Juel1)158059 |
| 913 | 0 | _ | |a DE-HGF |b Schlüsseltechnologien |l BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung |1 G:(DE-HGF)POF2-450 |0 G:(DE-HGF)POF2-451 |2 G:(DE-HGF)POF2-400 |v Soft Matter Composites |x 0 |
| 913 | 0 | _ | |a DE-HGF |b Struktur der Materie |l Forschung mit Photonen, Neutronen und Ionen (PNI) |1 G:(DE-HGF)POF2-540 |0 G:(DE-HGF)POF2-54G24 |2 G:(DE-HGF)POF2-500 |v JCNS |x 1 |
| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Materie |l Von Materie zu Materialien und Leben |1 G:(DE-HGF)POF3-620 |0 G:(DE-HGF)POF3-621 |2 G:(DE-HGF)POF3-600 |v In-house research on the structure, dynamics and function of matter |9 G:(DE-HGF)POF3-6215 |x 0 |4 G:(DE-HGF)POF |3 G:(DE-HGF)POF3 |
| 913 | 1 | _ | |a DE-HGF |9 G:(DE-HGF)POF3-6G15 |x 1 |4 G:(DE-HGF)POF |v FRM II / MLZ |1 G:(DE-HGF)POF3-6G0 |0 G:(DE-HGF)POF3-6G15 |3 G:(DE-HGF)POF3 |2 G:(DE-HGF)POF3-600 |b Forschungsbereich Materie |l Großgeräte: Materie |
| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Materie |l Von Materie zu Materialien und Leben |1 G:(DE-HGF)POF3-620 |0 G:(DE-HGF)POF3-623 |2 G:(DE-HGF)POF3-600 |v Facility topic: Neutrons for Research on Condensed Matter |9 G:(DE-HGF)POF3-6G4 |x 2 |4 G:(DE-HGF)POF |3 G:(DE-HGF)POF3 |
| 914 | 1 | _ | |y 2015 |
| 920 | 1 | _ | |0 I:(DE-Juel1)JCNS-FRM-II-20110218 |k JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II |l JCNS-FRM-II |x 0 |
| 920 | 1 | _ | |0 I:(DE-Juel1)JCNS-1-20110106 |k Neutronenstreuung ; JCNS-1 |l Neutronenstreuung |x 1 |
| 980 | _ | _ | |a conf |
| 980 | _ | _ | |a VDB |
| 980 | _ | _ | |a I:(DE-Juel1)JCNS-FRM-II-20110218 |
| 980 | _ | _ | |a I:(DE-Juel1)JCNS-1-20110106 |
| 980 | _ | _ | |a UNRESTRICTED |
| Library | Collection | CLSMajor | CLSMinor | Language | Author |
|---|