Rate dependent response of nanoscale structures having a multiwell energy landscape

Physical Review Letters
Itamar Benichou, Sefi Givli

Abstract

A stochastic and rate-dependent response originating from thermal fluctuations over a highly nonconvex energy landscape is a prevailing aspect of the mechanical behavior of nanoscale structures. The overdamped dynamics of a bistable chain subjected to thermal fluctuations is prototypical of such behavior. Based on this approach, we find a new nondimensional quantity, similar in its mathematical structure to Boltzmann's factor, which captures the intricate competition between rate, temperature, and energy barriers underlying the system dynamics. In turn, we obtain simple universal laws for predicting statistical properties of the mechanical response.

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Citations

May 29, 2020·Physical Biology·Manon BeneditoStefano Giordano
Nov 10, 2015·Physical Review Letters·Galen T Craven, Rigoberto Hernandez
Mar 23, 2019·Scientific Reports·G Florio, G Puglisi
Oct 24, 2019·Physical Review. E·Shmuel Katz, Sefi Givli
Jul 2, 2016·Physical Review Letters·Neel NadkarniChiara Daraio
Jun 27, 2017·Reports on Progress in Physics·M Caruel, L Truskinovsky
May 18, 2018·Journal of Chemical Theory and Computation·Carlos A PlataAntonio Prados

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