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This is a Quantitative Study study.

October 9, 2025Physical review. EOpen Access

Finite-temperature properties of the Frenkel-Kontorova model: Relation to tribological systems and fluid rheology

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Analysis reveals friction dynamics and diffusion changes in complex fluids, highlighting misconceptions in rheological models.

The friction-velocity dependence at medium shear rates is influenced by energy drops from shear-induced instabilities.
Power-law subdiffusion occurs between ballistic and diffusive regimes, showing a shift in diffusion characteristics.
The findings clarify misconceptions in rheology literature, particularly regarding the Eyring model's predictive power.
A transition from non-Arrhenius to Arrhenius dependence in the diffusion coefficient coincides with maximum specific heat.

Agarwal et al. (2025) studied this question.

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