Dissipative phase transitions in systems with nonreciprocal effective interactions

Kryuchkov, Nikita P.; Ivlev, A. V.; Yurchenko, Stanislav O.

doi:10.1039/c8sm01836g

Cited by 31 publications

(13 citation statements)

References 84 publications

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“…The wakes play the role of a third body and violate reciprocity of (effective) action and reaction forces acting between particles [28][29][30][31]. As a consequence, dynamics of the system is determined by interplay between energy release (due to nonreciprocity of interactions) and dissipation (due to Epstein damping) [6,30,32].…”

Section: Sound-induced Activation Of Thermal Defectsmentioning

confidence: 99%

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Experimental validation of interpolation method for pair correlations in model crystals

Yakovlev

Chaudhuri

Kryuchkov

et al. 2019

The Journal of Chemical Physics

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Defects play a crucial role in physics of solids, affecting their mechanical, electromagnetic, and chemical properties. However, influence of thermal defects on wave propagation in exothermic reactions (flame fronts) still remains poorly understood at molecular level. Here, we show that thermal behavior of the defects exhibits essential features of double-step exothermic reactions with pre-equilibrium. We use experiments with monolayer complex (dusty) plasma and find that it can show a double-step activation thermal behavior, similar to chemically-reactive media. Furthermore, for the first time we demonstrate capabilities to control flame fronts using defects and the different dynamic regimes of the thermal defects in complex (dusty) plasmas, from non-activated one to being sound-and self-activated (like in active soft matter). The results suggest that a range of challenging phenomena at the forefront of modern science (e.g. defect activation, flame front dynamics, reaction waves etc.) can now be experimentally interrogated on a microscopic scale.

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Section: Sound-induced Activation Of Thermal Defectsmentioning

confidence: 99%

“…Power, Q(T) (Cn) plasma crystal) [23,25,32]. Of course, the complex (dusty) plasmas cannot provide a direct physical mapping taking into account all details of chemically-reactive systems (e.g., mass-altering concentrations of reacting chemicals), but, owing to the qualitatively adequate form of Q(T ) illustrated in Fig.…”

Section: Reactions With Pre-equilibriummentioning

confidence: 99%

Experimental validation of interpolation method for pair correlations in model crystals

Yakovlev

Chaudhuri

Kryuchkov

et al. 2019

The Journal of Chemical Physics

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“…In the plasma of an RF discharge, it is possible to form levitating Coulomb systems using micron-sized particles differing in shape and composition, as well as to observe a wide range of effects, resulting from various influences, such as changes in the parameters of a gas discharge [3]. Under external influences, such systems can exhibit active properties, as well as the ability to self-organize [4].…”

Section: Introductionmentioning

confidence: 99%

Particle Surface Modification in the Near-Electrode Region of an RF Discharge

et al. 2021

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The results of a study on particles’ surfaces after being exposed to the near-electrode region of a radio frequency (RF) discharge are presented. It was experimentally displayed that metal starts being deposited on the surface of particles levitating above the lower electrode of the discharge chamber after switching the RF discharge on. For melamine-formaldehyde (MF) particles, the appearance of an island metal coating is observed after 30 min of plasma exposure. Eroded electrodes and elements of the gas discharge chamber may serve as a source of deposited material. In addition, an analysis of the surface and composition of particles placed on the upper electrode after 6 h of plasma exposure is presented. We reveal that the composition and structure of the particle coating changes during the experiment. The MF particles under exposure become eroded, and needle-like structures containing metals are formed on their surface. We also observe the formation of columnar structures from the products of erosion of electrodes on particles with a metal coating.

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“…Such a formal failure to comply with Newton's third law may arise, for example, when a particle subsystem in a medium is considered while the medium itself is indirectly taken into account through the potential of interparticle interaction, dissipative forces or as a source of particle kinetic energy. A striking example of such systems are some types of soft matter e.g., flowing colloidal suspensions 1 – 6 , active colloids 7 – 11 and gas-discharge complex (dusty) plasmas 12 – 23 where the geometry of interactions between particles plays a key role in the processes of self-organization, self-assembly, transfer and redistribution of energy, and nonequilibrium phase transitions. In addition to the fundamental physics that can be examined, the study of these systems is also of particular interest for nano- and micro-technological applications 24 – 30 .…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the nonreciprocal effective interactions between microparticles in an anisotropic plasma

Лисин

Петров

Sametov

et al. 2020

Sci Rep

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There is a variety of cases in nature when the action–reaction symmetry is broken. In particular, suitable conditions for this are realized in colloidal suspensions and complex plasmas. Since the first theories and simulations of the nonreciprocal effective interactions between microparticles in complex plasmas were published in 1995–1996, there have been hundreds of studies in the theoretical development of this theme. However, despite such a rich theoretical background, one of the important unsolved problems is a direct experimental determination of the nonreciprocal interparticle interaction forces. Here, we studied experimentally in detail the forces of the nonreciprocal effective interaction between microparticles suspended a radio-frequency produced plasma sheath. For this purpose, an experimental method based on an analysis of the spectral density of random processes in an open dissipative two-particle system was developed. In contrast to previous investigations, the proposed method takes into account random and dissipative processes in the system, does not require a special design of the experimental setup and any external perturbations, pre-measurements of external fields and any assumptions about the type of interaction. We found that even small charge changes of one particle, caused by its thermal motion in a wake field of another particle, can lead to a significant change in the effective (measurable) interaction between the particles.

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Dissipative phase transitions in systems with nonreciprocal effective interactions

Abstract: The reciprocity of effective interparticle forces can be violated in various open and nonequilibrium systems, in particular, in colloidal suspensions and complex (dusty) plasmas. The results indicate the realization of bistability and dissipative spinodal decomposition.

Cited by 31 publications

References 84 publications

Experimental validation of interpolation method for pair correlations in model crystals

Experimental validation of interpolation method for pair correlations in model crystals

Particle Surface Modification in the Near-Electrode Region of an RF Discharge

Experimental study of the nonreciprocal effective interactions between microparticles in an anisotropic plasma

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