66 citations · 536 across the 27 of their papers we have counts for
28 papers
Directional commensurability stabilizes structural superlubricity in patterned mesoscale interfaces
Viet Hung Ho, Ge Li, Melisa M. Gianetti +3
Structural superlubricity, arising from lattice incommensurability, offers a promising route to eliminate friction and associated energy losses in mechanical systems. In real-world…
Nonuniform pressure helps structural superlubricity
Melisa M. Gianetti, Viet Hung Ho, Bjørn Haugen +2
Structural superlubricity, nearly vanishing friction between two structurally incommensurate crystalline surfaces, is a promising avenue for reducing friction in applications, but…
Kinetic Theory for the Shear Viscosity of Dense Binary Dipolar Fluid Mixtures
Christopher Devik Fjeldstad, Roberto Troncoso, Astrid S. de Wijn
We construct a kinetic theory for the shear viscosity of dense binary fluid mixtures of strongly-interacting dipolar hard spheres. We derive an expression for the pairwise correlat…
Thermodynamic Approach to Momentum Transport in Dense Fluids
Christopher Devik Fjeldstad, Jonas Bueie, Astrid S. de Wijn
We present a new framework for extending Chapman-Enskog theory beyond the hard-sphere fluid model. Rather than relying on effective hard sphere diameters, the approach makes use of…
Kinetic theory applied to pressure-controlled shear flows of frictionless spheres between rigid, bumpy planes
Dalila Vescovi, Astrid S. de Wijn, Graham L. W. Cross +1
We numerically investigate, through discrete element simulations, the steady flow of identical, frictionless spheres sheared between two parallel, bumpy planes in the absence of gr…
Dynamics of collective action to conserve a large common-pool resource
David Andersson, Sigrid Bratsberg, Andrew K. Ringsmuth +1
A pressing challenge for coming decades is sustainable and just management of large-scale common-pool resources including the atmosphere, biodiversity and public services. This pos…
The vanishing water/oil interface in the presence of antagonistic salt
Gudrun Glende, Astrid S. de Wijn, Faezeh Pousaneh
Antagonistic salts are salts which consist of hydrophilic and hydrophobic ions. In a binary mixture of water and organic solvent, these ions preferentially dissolve into different…
Shear viscosity of pseudo hard-spheres
Faezeh Pousaneh, Astrid S. de Wijn
We present molecular dynamics simulations of pseudo hard sphere fluid (generalized WCA potential with exponents (50, 49) proposed by Jover et al. J. Chem. Phys 137, (2012)) using G…
Understanding the friction of atomically thin layered materials
David Andersson, Astrid S. de Wijn
Friction is a ubiquitous phenomenon that greatly affects our everyday lives and is responsible for large amounts of energy loss in industrialised societies. Layered materials such…
Friction Fluctuations of Gold Nanoparticles in the Superlubric Regime
Dirk Dietzel, Astrid S. de Wijn, Matthias Vorholzer +1
Superlubricity, or alternatively termed structural (super)lubrictiy, is a concept where ultra-low friction is expected at the interface between sliding surfaces if these surfaces a…
How square ice helps lubrication
Astrid S. de Wijn, Lars G. M. Pettersson
In the context of friction we use atomistic molecular-dynamics simulations to investigate water confined between graphene sheets over a wide range of pressures. We find that therma…
Emergent friction in two-dimensional Frenkel-Kontorova models
Jesper Norell, Annalisa Fasolino, Astrid S. de Wijn
Simple models for friction are typically one-dimensional, but real interfaces are two-dimensional. We investigate the effects of the second dimension on static and dynamic friction…
Imaging high-speed friction at the nanometer scale
Per-Anders Thorén, Astrid S. de Wijn, Riccardo Borgani +2
Friction is a complicated phenomenon involving nonlinear dynamics at different length and time scales[1, 2]. The microscopic origin of friction is poorly understood, due in part to…
Chaotic properties of spin lattices near second-order phase transitions
A. S. de Wijn, B. Hess, B. V. Fine
We perform a numerical investigation of the Lyapunov spectra of chaotic dynamics in lattices of classical spins in the vicinity of second-order ferromagnetic and antiferromagnetic…
Understanding and Controlling Regime Switching in Molecular Diffusion
S. Hallerberg, A. S. de Wijn
Diffusion can be strongly affected by ballistic flights (long jumps) as well as long-lived sticking trajectories (long sticks). Using statistical inference techniques in the spirit…
Nanoscopic friction under electrochemical control
A. S. de Wijn, A. Fasolino, A. Filippov +1
We propose a theoretical model of friction under electrochemical conditions focusing on the interaction of a force microscope tip with adsorbed polar molecules of which the orienta…
Atomic scale friction of molecular adsorbates during diffusion
B. A. J. Lechner, A. S. de Wijn, H. Hedgeland +4
Experimental observations suggest that molecular adsorbates exhibit a larger friction coefficient than atomic species of comparable mass, yet the origin of this increased friction…
Reconstruction of Tip-Surface Interactions with Multimodal Intermodulation Atomic Force Microscopy
Stanislav S. Borysov, Daniel Platz, Astrid S. de Wijn +4
We propose a theoretical framework for reconstructing tip-surface interactions using the intermodulation technique when more than one eigenmode is required to describe the cantilev…
Effect of temperature and velocity on superlubricity
Joost A. van den Ende, Astrid S. de Wijn, Annalisa Fasolino
We study the effects of temperature and sliding velocity on superlubricity in numerical simulations of the Frenkel-Kontorova model. We show that resonant excitations of the phonons…
Lyapunov instabilities in lattices of interacting classical spins at infinite temperature
A. S. de Wijn, B. Hess, B. V. Fine
We numerically investigate Lyapunov instabilities for one-, two- and three-dimensional lattices of interacting classical spins at infinite temperature. We obtain the largest Lyapun…
Criticality in Dynamic Arrest: Correspondence between Glasses and Traffic
A. S. de Wijn, D. M. Miedema, B. Nienhuis +1
Dynamic arrest is a general phenomenon across a wide range of dynamic systems, but the universality of dynamic arrest phenomena remains unclear. We relate the emergence of traffic…
Largest Lyapunov exponents for lattices of interacting classical spins
A. S. de Wijn, B. Hess, B. V. Fine
We investigate how generic the onset of chaos in interacting many-body classical systems is in the context of lattices of classical spins with nearest neighbor anisotropic coupling…
Low friction and rotational dynamics of crystalline flakes in solid lubrication
A. S. de Wijn, A. Fasolino, A. E. Filippov +1
Solids at incommensurate contact display low-friction, 'superlubric', sliding. For graphene flakes on a graphite surface, superlubric sliding is only temporary due to rotation of t…
Relating chaos to deterministic diffusion of a molecule adsorbed on a surface
Astrid S. de Wijn, Annalisa Fasolino
Chaotic internal degrees of freedom of a molecule can act as noise and affect the diffusion of the molecule on a substrate. A separation of time scales between the fast internal dy…