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pro vyhledávání: '"Vink, Richard L. C."'
While obtaining theoretical predictions for dissipation during sliding motion is a difficult task, one regime that allows for analytical results is the so-called noncontact regime, where a probe is weakly interacting with the surface over which it mo
Externí odkaz:
http://arxiv.org/abs/2108.03025
Publikováno v:
Phys. Rev. B 101, 235426 (2020)
We analyze the friction force exerted on a small probe particle sliding over an atomic-scale surface by means of a Green-Kubo relation and classical Molecular Dynamics simulations. We find that, on the atomic scale, the friction tensor can drasticall
Externí odkaz:
http://arxiv.org/abs/2003.14219
Autor:
Vink, Richard L. C.
Publikováno v:
Phys. Rev. B 100, 094305 (2019)
A typical nanotribology simulation setup is the semi-infinite substrate, featuring a sliding bead on top, and with the lower substrate layers thermostatted to control temperature. A challenge is dealing with phonons that backreflect from the substrat
Externí odkaz:
http://arxiv.org/abs/1904.02470
Autor:
Vink, Richard L. C.
Publikováno v:
Phys. Rev. E 98, 062109 (2018)
The displacive structural phase transition in a two-dimensional model solid due to Benassi and co-workers [PRL 106, 256102 (2011)] is analyzed using Monte Carlo simulations and finite-size scaling. The model is shown to be a member of the two-dimensi
Externí odkaz:
http://arxiv.org/abs/1808.08191
Autor:
Vink, Richard L. C.
A coarse-grained model to describe the lateral structure of a one-component polymer brush is presented. In this model, a single polymer chain is described by just two coordinates, namely the position of the grafted monomer, and the monomer on the non
Externí odkaz:
http://arxiv.org/abs/1402.4270
Autor:
Vink, Richard L. C.
Publikováno v:
Phys. Rev. E V90 P062132 (2014)
Liquid crystals in two dimensions do not support long-ranged nematic order, but a quasi-nematic phase where the orientational correlations decay algebraically is possible. The transition from the isotropic to the quasi-nematic phase can be continuous
Externí odkaz:
http://arxiv.org/abs/1401.6301
The bulk phase behavior of a fluid is typically altered when the fluid is brought into confinement by the walls of a random porous medium. Inside the porous medium, phase transition points are shifted, or may disappear altogether. A crucial determina
Externí odkaz:
http://arxiv.org/abs/1308.2623
According to the lipid raft hypothesis, biological lipid membranes are laterally heterogeneous and filled with nanoscale ordered "raft" domains, which are believed to play an important role for the organization of proteins in membranes. However, the
Externí odkaz:
http://arxiv.org/abs/1303.5123
In experiments on model membranes, a formation of large domains of different lipid composition is readily observed. However, no such phase separation is observed in the membranes of intact cells. Instead, a structure of small transient inhomogeneitie
Externí odkaz:
http://arxiv.org/abs/1205.1001
Autor:
Speck, Thomas, Vink, Richard L. C.
Publikováno v:
Phys. Rev. E 86, 031923 (2012)
Theoretical models describing specific adhesion of membranes predict (for certain parameters) a macroscopic phase separation of bonds into adhesion domains. We show that this behavior is fundamentally altered if the membrane is pinned randomly due to
Externí odkaz:
http://arxiv.org/abs/1203.2493