# Relaxation to steady states of a binary liquid mixture around an optically heated colloid.

@article{Araki2022RelaxationTS, title={Relaxation to steady states of a binary liquid mixture around an optically heated colloid.}, author={Takeaki Araki and Juan Ruben Gomez-Solano and Anna Maciołek}, journal={Physical review. E}, year={2022}, volume={105 1-1}, pages={ 014123 } }

We study the relaxation dynamics of a binary liquid mixture near a light-absorbing Janus particle after switching on and off illumination using experiments and theoretical models. The dynamics is controlled by the temperature gradient formed around the heated particle. Our results show that the relaxation is asymmetric: The approach to a nonequilibrium steady state is much slower than the return to thermal equilibrium. Approaching a nonequilibrium steady state after a sudden temperature change…

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## References

SHOWING 1-10 OF 62 REFERENCES

### Transient coarsening and the motility of optically heated Janus colloids in a binary liquid mixture.

- PhysicsSoft matter
- 2020

A gold-capped Janus particle suspended in a near-critical binary liquid mixture can self-propel under illumination and a combined experimental and theoretical study of the non-equilibrium dynamics of a binary solvent around it - lasting from the very moment of switching illumination on until the steady state is reached.

### Non-equilibrium steady state of a driven levitated particle with feedback cooling

- Physics
- 2015

Laser trapped nanoparticles have been recently used as model systems to study fundamental relations holding far from equilibrium. Here we study a nanoscale silica sphere levitated by a laser in a low…

### Relaxation of a colloidal particle into a nonequilibrium steady state.

- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2009

The relaxation of a single colloidal sphere which is periodically driven between two nonequilibrium steady states is studied and the relaxation time after which the probability distributions have been relaxed is identical to the decay of the velocity autocorrelation function measured in a steady state.

### Phase separation around a heated colloid in bulk and under confinement.

- PhysicsSoft matter
- 2018

We study the non-equilibrium coarsening dynamics of a binary liquid solvent around a colloidal particle in the presence of a time-dependent temperature gradient that emerges after a temperature…

### Transient dynamics during stress overshoots in binary colloidal glasses.

- PhysicsSoft matter
- 2014

We investigate, using simultaneous rheology and confocal microscopy, the time-dependent stress response and transient single-particle dynamics following a step change in shear rate in binary…

### Illumination-induced motion of a Janus nanoparticle in binary solvents.

- PhysicsSoft matter
- 2019

A fluid particle dynamics method is numerically investigated the motion of a spherical Janus particle suspended in a binary liquid mixture, which emerges under heating of one-half of a colloid surface, finding the particle self-propels much faster in nonsymmetric binary solvents.

### Experimental verification of a modified fluctuation-dissipation relation for a micron-sized particle in a nonequilibrium steady state.

- Physics, EngineeringPhysical review letters
- 2009

A modified fluctuation-dissipation theorem for a nonequilibrium steady state is experimentally checked by studying the position fluctuations of a colloidal particle whose motion is confined in a toroidal optical trap and can be interpreted as an equilibriumlike fluctuation dissipation relation in the Lagrangian frame of the mean local velocity of the particle.

### Motion of Optically Heated Spheres at the Water-Air Interface.

- PhysicsLangmuir : the ACS journal of surfaces and colloids
- 2016

It is shown that the laser-heated particle behaves as a microswimmer with velocities on the order of several 100 μm/s with just a few milliwatts of laser power, similarly to 2-dimensional trapping of a transparent sphere by optical forces.

### Stress development, relaxation, and memory in colloidal dispersions: Transient nonlinear microrheology

- Physics
- 2013

The motion of a single Brownian particle in a complex fluid can reveal material behavior both at and away from equilibrium. In active microrheology, a probe particle is driven by an external force…

### Anomalous Diffusion and Relaxation Close to Thermal Equilibrium: A Fractional Fokker-Planck Equation Approach

- Physics
- 1999

We introduce a fractional Fokker-Planck equation describing the stochastic evolution of a particle under the combined influence of an external, nonlinear force and a thermal heat bath. For the…