Analytic understanding and control of dynamical friction

Panizon, Emanuele; Santoro, Giuseppe E.; Tosatti, Erio; Riva, Gabriele; Manini, Nicola

doi:10.1103/physrevb.97.104104

Cited by 24 publications

(16 citation statements)

References 30 publications

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“…This is achieved while maintaining a full control of dissipation and temperature, thus emulating perfectly the Prandtl–Tomlinson model [ 149 ]. Along this research line, characteristic dissipation frictional peaks at specific values of the slider velocity, recently investigated within a 1D theoretical approach [ 156 – 157 ], could be potentially observed in experiments here.…”

Section: Reviewmentioning

confidence: 82%

Recent highlights in nanoscale and mesoscale friction

Vanossi¹,

Dietzel²,

Schirmeisen³

et al. 2018

Beilstein J. Nanotechnol.

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Friction is the oldest branch of non-equilibrium condensed matter physics and, at the same time, the least established at the fundamental level. A full understanding and control of friction is increasingly recognized to involve all relevant size and time scales. We review here some recent advances on the research focusing of nano- and mesoscale tribology phenomena. These advances are currently pursued in a multifaceted approach starting from the fundamental atomic-scale friction and mechanical control of specific single-asperity combinations, e.g., nanoclusters on layered materials, then scaling up to the meso/microscale of extended, occasionally lubricated, interfaces and driven trapped optical systems, and eventually up to the macroscale. Currently, this “hot” research field is leading to new technological advances in the area of engineering and materials science.

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Section: Reviewmentioning

confidence: 82%

Recent highlights in nanoscale and mesoscale friction

Vanossi¹,

Dietzel²,

Schirmeisen³

et al. 2018

Beilstein J. Nanotechnol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, experiments are done with laser-cooled and trapped ions for insights into friction processes [23,24,49,[86][87][88]. The systems try to emulate the FK model (1) for a small number N , where the chain of the interesting particles slides under an external force over the fixed rigid sinusoidal potential.…”

Section: Discussionmentioning

confidence: 99%

A model for a driven Frenkel–Kontorova chain

Quapp

Bofill

2019

Eur. Phys. J. B

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We study a Frenkel-Kontorova model of a finite chain with free-end boundary conditions. The model has two competing potentials. Newton trajectories are an ideal tool to understand the circumstances under a driving of a Frenkel-Kontorova chain by external forces. To reach the insights we calculate some stationary structures for a chain with 23 particles. We search the lowest energy saddle points for a complete minimum energy path of the chain for a movement over the full period of the on-site potential, a sliding. If an additional tilting is set, then one is interested in barrier breakdown points on the potential energy surface for a critical tilting force named the static frictional force. In symmetric cases, such barrier breakdown points are often valley-ridge inflection points of the potential energy surface. We explain the theory and demonstrate it with an example. We propose a model for a DC drive, as well as an AC drive, of the chain using special directional vectors of the external force.

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“…We here follow a different approach, with the goal being to ob-* cammaant@fel.cvut.cz tain information on frictional and dissipative properties by the only knowledge of the static properties of the system, without the need to perform long and costly dynamic simulations; furthermore, we use a system-independent framework which is applicable to any kind of chemistry and atom topology. The approach that we adopt is based on the phonon modes calculated on the stable geometry; indeed, recent works have already drawn attention to the role of phonons in determining the frictional properties of tribological systems [14,15].…”

Section: Introductionmentioning

confidence: 99%

Control of energy dissipation in sliding low-dimensional materials

Cammarata

Polcar

2020

Phys. Rev. B

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Frictional forces acting during the relative motion of nanosurfaces are the cause of energy loss and wear which limit an efficient assembly and yield of atomic-scale devices. In this research, we investigate the microscopic origin of the dissipative processes as a result of the frictional response, with the aim to control them in a subtle way. We recast the study of friction in terms of phonon modes of the system at the equilibrium, with no need to resort to dynamics simulations. As a case study, we here consider layer sliding in transition metal dichalcogenides thin films. We find that the population of specific atomic orbitals and the relative contribution of the atomic type to selected system vibrations are the crucial quantities which determine the frictional response in tribological conditions. A reduced amount of energy dissipation is found when the bond character is more ionic and the layer sliding is realized by a faster motion of the chalcogen atoms. The individuated relevant parameters governing the energy dissipation can be used as descriptors in high-throughput calculations or machine learning engines to screen databases of frictional materials. The presented framework is general and can be promptly extended to the design of tribological materials with targeted frictional response, irrespective of the chemistry and atomic topology.

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Analytic understanding and control of dynamical friction

Cited by 24 publications

References 30 publications

Recent highlights in nanoscale and mesoscale friction

Recent highlights in nanoscale and mesoscale friction

A model for a driven Frenkel–Kontorova chain

Control of energy dissipation in sliding low-dimensional materials

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