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- W3007255437 abstract "We theoretically design a kind of diffusion bistability (and even multistability) in the macroscopic scale, which has a similar phenomenon but different underlying mechanism from its microscopic counterpart [Phys. Rev. Lett. 101, 267203 (2008)]; the latter has been extensively investigated in literature, e.g., for building nanometer-scale memory components. By introducing second- and third-order nonlinear terms (that opposite in sign) into diffusion coefficient matrices, a bistable energy or mass diffusion occurs with two different steady states identified as ``0'' and ``1.'' In particular, we study heat conduction in a two-terminal three-body system and show that this bistable system exhibits a macroscale thermal memory effect with tailored nonlinear thermal conductivities. The theoretical analysis is confirmed by finite-element simulations. Also, we suggest experiments with metamaterials based on shape memory alloys. This theoretical framework blazes a trail on constructing intrinsic bistability or multistability in diffusive systems for macroscopic energy or mass management." @default.
- W3007255437 created "2020-03-06" @default.
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- W3007255437 date "2020-02-18" @default.
- W3007255437 modified "2023-10-03" @default.
- W3007255437 title "Designing bistability or multistability in macroscopic diffusive systems" @default.
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- W3007255437 doi "https://doi.org/10.1103/physreve.101.022119" @default.
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