Zobrazeno 1 - 10 of 156 pro vyhledávání: '"Jörg Baschnagel"'
1
Akademický článek
General Relations between Stress Fluctuations and Viscoelasticity in Amorphous Polymer and Glass-Forming Systems
Autor: Alexander Semenov, Jörg Baschnagel
Publikováno v: Polymers, Vol 16, Iss 16, p 2336 (2024)
Mechanical stress governs the dynamics of viscoelastic polymer systems and supercooled glass-forming fluids. It was recently established that liquids with long terminal relaxation times are characterized by transiently frozen stress fields, which, mo
Externí odkaz: https://doaj.org/article/59a149e63ac942d1b69d355a0a45e9cd
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2
Akademický článek
Semiflexible Chains at Surfaces: Worm-Like Chains and beyond
Autor: Jörg Baschnagel, Hendrik Meyer, Joachim Wittmer, Igor Kulić, Hervé Mohrbach, Falko Ziebert, Gi-Moon Nam, Nam-Kyung Lee, Albert Johner
Publikováno v: Polymers, Vol 8, Iss 8, p 286 (2016)
We give an extended review of recent numerical and analytical studies on semiflexible chains near surfaces undertaken at Institut Charles Sadron (sometimes in collaboration) with a focus on static properties. The statistical physics of thin confined
Externí odkaz: https://doaj.org/article/cbb20831d15644b6ad2b1a647fca9a7e
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3
Role of Short Chain Branching in Crystalline Model Polyethylenes
Autor: William S. Fall, Jörg Baschnagel, Olivier Lhost, Hendrik Meyer
Publikováno v: Macromolecules
Macromolecules, 2022, 55 (19), pp.8438-8450. ⟨10.1021/acs.macromol.2c00938⟩
International audience; The role of short chain branches (SCBs) (C4H9) on the melt and crystalline properties of monodisperse polyethylene systems (C400H802) is investigated, using molecular dynamics simulations of a coarse-grained united-monomer mod
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2405f64588addadf52aa46c8f734e5b0
https://hal.science/hal-03872298/file/Role_of_SCB_in_ModelPE-300dpi.pdf
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4
Relaxation moduli of glass-forming systems: temperature effects and fluctuations
Autor: J. P. Wittmer, L. Klochko, Alexander N. Semenov, Jörg Baschnagel
Publikováno v: Soft Matter
Soft Matter, Royal Society of Chemistry, In press, ⟨10.1039/D1SM00778E⟩
Soft Matter, Royal Society of Chemistry, 2021, 17 (34), pp.7867-7892. ⟨10.1039/d1sm00778e⟩
Soft Matter, In press, ⟨10.1039/D1SM00778E⟩
Soft Matter, 2021, 17 (34), pp.7867-7892. ⟨10.1039/d1sm00778e⟩
International audience; Equilibrium and dynamical properties of a two-dimensional polydisperse colloidal model system are characterized by means of molecular dynamics (MD) and Monte Carlo (MC) simulations. We employed several methods to prepare quasi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2213dc3ffbf61c1c3b3283c22fe63cb6
https://doi.org/10.1039/d1sm00778e
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5
The memory of thin polymer films generated by spin coating
Autor: Günter Reiter, Farzad Ramezani, Jörg Baschnagel
Publikováno v: The European Physical Journal E. 45
We present results from isothermal and temperature-sweep creep experiments adapted to filaments which were derived from spin coated and subsequently crumpled thin polystyrene films. Due to the existence of residual stresses induced by preparation, th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0ccaca66605bf9d71fadbfcdc17cfff
https://doi.org/10.1140/epje/s10189-022-00205-2
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6
Fluctuations of non-ergodic stochastic processes
Autor: J. P. Wittmer, G. George, Jörg Baschnagel, L. Klochko, Alexander N. Semenov
Publikováno v: European Physical Journal E: Soft matter and biological physics
European Physical Journal E: Soft matter and biological physics, 2021, 44 (4), ⟨10.1140/epje/s10189-021-00070-5⟩
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2021, 44 (4), ⟨10.1140/epje/s10189-021-00070-5⟩
European Physical Journal E: Soft matter and biological physics, 2021, 44 (4), pp.54. ⟨10.1140/epje/s10189-021-00070-5⟩
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2021, 44 (4), pp.54. ⟨10.1140/epje/s10189-021-00070-5⟩
We investigate the standard deviation $\delta v(\tsamp)$ of the variance $v[\xbf]$ of time series $\xbf$ measured over a finite sampling time $\tsamp$ focusing on non-ergodic systems where independent "configurations" $c$ get trapped in meta-basins o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48c2d5b14b1945c95c85dda8d059f17b
https://hal.science/hal-03439662
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7
Glassy dynamics of a binary Voronoi fluid: a mode-coupling analysis
Autor: Liesbeth M. C. Janssen, Céline Ruscher, Chengjie Luo, Simone Ciarella, Jörg Baschnagel, Jean Farago
Publikováno v: Journal of Physics: Condensed Matter, 33(6):064001. Institute of Physics
The binary Voronoi mixture is a fluid model whose interactions are local and many-body. Here we perform molecular-dynamics (MD) simulations of an equimolar mixture that is weakly polydisperse and additive. For the first time we study the structural r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb480b3fb7fdea7fe38e51381f2b6eb5
https://research.tue.nl/en/publications/caa0f196-0d34-4f58-b790-6ebe98aa9d76
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8
Ensemble fluctuations matter for variances of macroscopic variables
Autor: J. P. Wittmer, G. George, Alexander N. Semenov, Jörg Baschnagel, L. Klochko
Publikováno v: European Physical Journal E: Soft matter and biological physics
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2021, 44 (2), pp.13
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2021, 44 (2), ⟨10.1140/epje/s10189-020-00004-7⟩
European Physical Journal E: Soft matter and biological physics, 2021, 44 (2), ⟨10.1140/epje/s10189-020-00004-7⟩
Extending recent work on stress fluctuations in complex fluids and amorphous solids we describe in general terms the ensemble average $v(\Delta t)$ and the standard deviation $\delta v(\Delta t)$ of the variance $v[\mathbf{x}]$ of time series $\mathb
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7c410b1619c00bcd7a07fc2a0fa3c55
https://doi.org/10.1140/epje/s10189-020-00004-7
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9
General relations to obtain the time-dependent heat capacity from isothermal simulations
Autor: Alexander N. Semenov, Jörg Baschnagel, L. Klochko, J. P. Wittmer
Publikováno v: Journal of Chemical Physics
Journal of Chemical Physics, American Institute of Physics, 2021, 154 (16), pp.164501. ⟨10.1063/5.0046697⟩
Journal of Chemical Physics, 2021, 154 (16), pp.164501. ⟨10.1063/5.0046697⟩
International audience; It is well-known that time-dependent correlation functions related to temperature and energy can crucially depend on the thermostatting mechanism used in computer simulations of molecular systems. We argue, however, that linea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f812a74b876b3596858a0b11ed5e924
https://hal.archives-ouvertes.fr/hal-03255166/document
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10
Composition fluctuations in polydisperse liquids: Glasslike effects well above the glass transition
Autor: Olivier Benzerara, Alexander N. Semenov, L. Klochko, J. P. Wittmer, Jörg Baschnagel, Céline Ruscher
Publikováno v: Physical Review E
Physical Review E, American Physical Society (APS), 2020, 102 (4), ⟨10.1103/PhysRevE.102.042611⟩
We study a two-dimensional glass-forming system of slightly polydisperse (LJ) particles using molecular dynamics simulations and demonstrate that in the liquid regime (well above the vitrification temperature) this model shows a number of features ty
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de159019ef575e14fd56c2698a59a122
https://hal.archives-ouvertes.fr/hal-03009832
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