338 citations · 886 across the 13 of their papers we have counts for
13 papers
Heterogeneous diffusion, viscosity and the Stokes Einstein relation in binary liquids
H. R. Schober, H. L. Peng
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 f…
An atomic mechanism for the boson peak in metallic glasses
U. Buchenau, H. R. Schober
The boson peak in metallic glasses is modeled in terms of local structural shear rearrangements. Using Eshelby's solution of the corresponding elasticity theory problem (J. D. Eshe…
Vibrational instability, two-level systems and Boson peak in glasses
D. A. Parshin, V. L. Gurevich, H. R. Schober
We show that the same physical mechanism is fundamental for two seemingly different phenomena such as the formation of two-level systems in glasses and the Boson peak in the reduce…
Diffusion in a model metallic glass: heterogeneity and ageing
H. R. Schober
We report results of molecular dynamics simulations of a binary Lennard-Jones system at zero pressure in the undercooled liquid and glassy states. We first follow the evolution of…
Diffusion and jump-length distribution in liquid and amorphous CuZr
M. Kluge, H. R. Schober
Using molecular dynamics simulation, we calculate the distribution of atomic jum ps in CuZr in the liquid and glassy states. In both states the distribution of jump l…
Pressure dependence of the Boson peak in glasses
V. L. Gurevich, D. A. Parshin, H. R. Schober
The inelastic scattering intensities of glasses and amorphous materials has a maximum at a low frequency, the so called Boson peak. Under applied hydrostatic pressure, , the Bos…