Dynamics of Atomic Stick-Slip Friction Examined with Atomic Force Microscopy and Atomistic Simulations at Overlapping Speeds

Liu, Xin Z.; Ye, Zhijiang; Dong, Yalin; Egberts, Philip; Carpick, Robert W.; Martini, Ashlie

doi:10.1103/physrevlett.114.146102

Cited by 84 publications

(87 citation statements)

References 42 publications

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“…With the quasi-static method, individual stick-slip events can be resolved9 up to velocities ∼3 μm s −1 , at least four orders of magnitude below the velocity scale relevant to applications. At higher velocity stick-slip events can not be resolved, only the mean force of sliding friction.…”

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confidence: 99%

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Imaging high-speed friction at the nanometer scale

et al. 2016

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Friction is a complicated phenomenon involving nonlinear dynamics at different length and time scales. Understanding its microscopic origin requires methods for measuring force on nanometer-scale asperities sliding at velocities reaching centimetres per second. Despite enormous advances in experimental technique, this combination of small length scale and high velocity remain elusive. We present a technique for rapidly measuring the frictional forces on a single asperity over a velocity range from zero to several centimetres per second. At each image pixel we obtain the velocity dependence of both conservative and dissipative forces, revealing the transition from stick-slip to smooth sliding friction. We explain measurements on graphite using a modified Prandtl–Tomlinson model, including the damped elastic deformation of the asperity. With its improved force sensitivity and small sliding amplitude, our method enables rapid and detailed surface mapping of the velocity dependence of frictional forces with less than 10 nm spatial resolution.

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confidence: 99%

“…At higher velocity stick-slip events can not be resolved, only the mean force of sliding friction. Scan velocities as high as 580 μm s −1 have been reached10, but at this velocity a measurement time of 1 ms would limit spatial resolution to 580 nm.…”

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Imaging high-speed friction at the nanometer scale

et al. 2016

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“…Jansen et al determined the thermal effect on the stick-slip friction experimentally [29]. Liu et al identified the existence of the stick-slip friction plateau dependent on the scanning speed [30]. Recently, Vilhena et al explored to study the stick-slip friction in water, not in ultrahigh vacuum, to improve the measurement's robustness [31].…”

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Optical-assistant characterization of friction anisotropy properties of single-crystal graphene domains

Liu

2017

Tribology International

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“…DOI: 10.1103/PhysRevLett.119.043601 Stick-slip friction is a ubiquitous nonequilibrium dynamical process that occurs at the interface between surfaces across a wide range of length scales [1][2][3][4][5][6]. The term stick slip describes the system's response to an applied shear force: the surfaces slip out of a local minimum in the interface energy landscape, and stick into a new lowerenergy minimum, releasing heat in the process.Recent advances in atomic force microscopy (AFM) have extended the study of stick-slip friction to the atomic scale, where atom-by-atom slips occur at the interface between a probe tip and a periodic substrate [7][8][9][10][11][12][13][14][15][16][17][18]. For a single-atom probe, the number of local minima in the probe-substrate interaction potential is determined by the ratio of the periodic substrate potential to the spring constant with which the probe is bound to its support object.…”

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confidence: 99%

“…Recent advances in atomic force microscopy (AFM) have extended the study of stick-slip friction to the atomic scale, where atom-by-atom slips occur at the interface between a probe tip and a periodic substrate [7][8][9][10][11][12][13][14][15][16][17][18]. For a single-atom probe, the number of local minima in the probe-substrate interaction potential is determined by the ratio of the periodic substrate potential to the spring constant with which the probe is bound to its support object.…”

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Multislip Friction with a Single Ion

et al. 2017

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A trapped ion transported along a periodic potential is studied as a paradigmatic nanocontact frictional interface. The combination of the periodic corrugation potential and a harmonic trapping potential creates a one-dimensional energy landscape with multiple local minima, corresponding to multistable stick-slip friction. We measure the probabilities of slipping to the various minima for various corrugations and transport velocities. The observed probabilities show that the multislip regime can be reached dynamically at smaller corrugations than would be possible statically, and can be described by an equilibrium Boltzmann model. While a clear microscopic signature of multislip behavior is observed for the ion motion, the frictional force and dissipation are only weakly affected by the transition to multistable potentials. DOI: 10.1103/PhysRevLett.119.043601 Stick-slip friction is a ubiquitous nonequilibrium dynamical process that occurs at the interface between surfaces across a wide range of length scales [1][2][3][4][5][6]. The term stick slip describes the system's response to an applied shear force: the surfaces slip out of a local minimum in the interface energy landscape, and stick into a new lowerenergy minimum, releasing heat in the process.Recent advances in atomic force microscopy (AFM) have extended the study of stick-slip friction to the atomic scale, where atom-by-atom slips occur at the interface between a probe tip and a periodic substrate [7][8][9][10][11][12][13][14][15][16][17][18]. For a single-atom probe, the number of local minima in the probe-substrate interaction potential is determined by the ratio of the periodic substrate potential to the spring constant with which the probe is bound to its support object. As the load on the probe is increased, or equivalently, the periodic substrate potential is deepened, the system transitions from a bistable regime (where the probe deterministically single slips from the first minimum to the second) to a multistable regime (where a probe can stochastically multislip to one of several local minima). This has been demonstrated in AFM simulations [19][20][21][22] and experiments [23][24][25] where single-slip and multislip events have been clearly differentiated. However, in the absence of control over dissipation rates and the microscopic energy landscape, it is difficult to tie the observations to ab initio friction models.Following theoretical proposals [26][27][28][29], we have recently demonstrated a trapped-ion friction emulator with extensive control over all microscopic interface parameters [30][31][32]. In analogy to AFM, the emulator features a small probe (one or several trapped ions) transported over a In this Letter, we study multislip friction in deep substrate potentials. We observe the ion fluorescence associated with slip events, from which we directly extract the temperature-and velocity-dependent probabilities for the ion to localize in one of the available local minima. We find that at finite rethermalization times following a s...

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Dynamics of Atomic Stick-Slip Friction Examined with Atomic Force Microscopy and Atomistic Simulations at Overlapping Speeds

Cited by 84 publications

References 42 publications

Imaging high-speed friction at the nanometer scale

Imaging high-speed friction at the nanometer scale

Optical-assistant characterization of friction anisotropy properties of single-crystal graphene domains

Multislip Friction with a Single Ion

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