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pro vyhledávání: '"H. R. Schober"'
Autor:
H. R. Schober
Publikováno v:
Physical review / B 103(9), 094202 (2021). doi:10.1103/PhysRevB.103.094202
Relaxation and aging rates of amorphous selenium and its undercooled melt are calculated by molecular dynamics based on an interaction model derived from density functional calculations. After a fast initial relaxation immediately following the quenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c93274ad95d617667b8f0534f760e86
https://doi.org/10.1103/physrevb.103.094202
https://doi.org/10.1103/physrevb.103.094202
Publikováno v:
Physical Review B. 102
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b52f5c1cf8ac05fcfd24490f3b241dae
https://doi.org/10.1103/physrevb.102.099901
https://doi.org/10.1103/physrevb.102.099901
Publikováno v:
Physical review / B 102(10), 104202 (2020). doi:10.1103/PhysRevB.102.104202
Physical review B (PRB)
Physical review B (PRB)
Molecular dynamics simulations of liquid and glassy selenium have been carried out using density functional (400-773 K, 600 atoms) and classical force field (290-500 K, 5488 atoms) methods. Structural features (structure factors, pair distribution fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc763145900a275823de2360f23ff324
https://trepo.tuni.fi/handle/10024/127983
https://trepo.tuni.fi/handle/10024/127983
Publikováno v:
Physical review / E 94(6), 060601 (R) (2016). doi:10.1103/PhysRevE.94.060601
Molecular dynamic simulations are performed to reveal the long-time behavior of the velocity autocorrelation function (VAF) by utilizing the finite-size effect in a Lennard-Jones binary mixture. Whereas in normal liquids the classical positive ${t}^{
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b870f20b4bcb1935d19bd4328472ae9d
https://pubmed.ncbi.nlm.nih.gov/28085468
https://pubmed.ncbi.nlm.nih.gov/28085468
Publikováno v:
The journal of chemical physics 144(12), 124505 (2016). doi:10.1063/1.4944081
Transport properties and the Stokes-Einstein (SE) relation in liquid Cu8Zr3 are studied by molecular dynamics simulation with a modified embedded atom potential. The critical temperature Tc of mode coupling theory (MCT) is derived as 930 K from the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1112a970d922970350f3e960f2517b6a
https://hdl.handle.net/2128/18951
https://hdl.handle.net/2128/18951
Autor:
H. L. Peng, H. R. Schober
Publikováno v:
Physical review / E 93(5), 052607 (2016). doi:10.1103/PhysRevE.93.052607
We investigate the origin of the breakdown of the Stokes-Einstein relation (SER) between diffusivity and viscosity in undercooled melts. A binary Lennard-Jones system, as a model for a metallic melt, is studied by molecular dynamics. A weak breakdown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d19c16dfbdde6b4b21cd5e9c4e6b387
https://hdl.handle.net/2128/11192
https://hdl.handle.net/2128/11192
Autor:
H. R. Schober
Publikováno v:
Journal of Non-Crystalline Solids. 357:501-505
There is ample evidence both from computer simulation and experiments that the structural disorder characterizing glasses and amorphous materials leads to quasi-localized vibrations (QLVs). The effect of these modes on low temperature properties such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b73c08021c25a50cd21db8196e3fb02a
https://doi.org/10.1016/j.jnoncrysol.2010.07.036
https://doi.org/10.1016/j.jnoncrysol.2010.07.036
Autor:
H. R. Schober, M. Kluge
Publikováno v:
Journal of Non-Crystalline Solids. 352:5093-5097
Diffusion in metallic glasses and their undercooled melts is a highly collective process which upon quenching passes from flow to hopping. In the undercooled liquid one can still describe diffusion by jumps which, however, are too rapid for the syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2f5c5edf3ff1b0124108972d9379410
https://doi.org/10.1016/j.jnoncrysol.2006.01.155
https://doi.org/10.1016/j.jnoncrysol.2006.01.155
Publikováno v:
physica status solidi (c). 1:3178-3181
We have performed a Brillouin scattering study of methanol-water solutions at different molar fraction concentrations of methanol as a function of pressure. For that purpose a diamond anvil cell was used and pressures up to 25 kbar were reached. All
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dde565e2bd568785e7d8709ae51112de
https://doi.org/10.1002/pssc.200405281
https://doi.org/10.1002/pssc.200405281
Autor:
H. R. Schober, Giancarlo Ruocco
Publikováno v:
Philosophical Magazine. 84:1361-1372
The existence of localized vibrations at low frequencies in glasses and the notion and the properties of quasilocalized vibrations (QLVs) in glasses have been debated in the recent literature. By clarifying the main features of the QLVs and of the lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61828013f1d0e7fa4cd55c65fccdcb16
https://doi.org/10.1080/14786430310001644107
https://doi.org/10.1080/14786430310001644107