Ring statistics in 2D-silica: effective temperatures in equilibrium

Abstract

The thermodynamic properties of subsystems in strong interaction with the neighborhood can largely differ from the standard behavior. Here we study the thermodynamic properties of rings and triplets in equilibrated disordered 2D-silica. Their statistics follows a Boltzmann behavior, albeit with a strongly reduced temperature. This effective temperature strongly depends on the length scale of the chosen subsystem. From a systematic analysis of the 1D Ising model and an analytically solvable model we suggest that these observations reflect the presence of strong local positive energy correlations.

arXiv comment10 pages, 3 figures, letter

References in corpus (13)

• Superstatistics
• The potential energy landscape of a model glass former: thermodynamics, anharmonicities, and finite size effects
• The Origin of the Fragile-to-Strong Crossover in Liquid Silica as Expressed by its Potential Energy Landscape
• The Big World of Nanothermodynamics
• Beyond Boltzmann-Gibbs statistics: Maximum entropy hyperensembles out-of-equilibrium
• Anomalous diffusion of driven particles in supercooled liquids
• Estimate of temperature and its uncertainty in small systems
• A maximum entropy thermodynamics of small systems
• Phase equilibria and interfacial properties of two-dimensional Yukawa fluids
• Structure and thermodynamics of a mixture of patchy and spherical colloids: a multi-body association theory with complete reference fluid information
• Ring correlations in random networks
• Quasichemical theory and the description of associating fluids relative to a reference: Multiple bonding of a single site solute
• Mini-grand canonical ensemble: chemical potential in the solvation shell

Cited by in corpus (7)

• Electronic band structure of ultimately thin silicon oxide on Ru(0001)
• Origin of reversible and irreversible atomic-scale rearrangements in a model two-dimensional network glass
• Relating local structures, energies, and occurrence probabilities in a two-dimensional silica network
• Energy localization and excess fluctuations from long-range interactions in equilibrium molecular dynamics
• Influence of the coordination defects on the dynamics and the potential energy landscape of two-dimensional silica
• Starting from the amorphous ground state: linking landscape thermodynamics to slow dynamics and crossover
• Derivation of a statistical model for classical systems obeying fractional exclusion principle