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arXiv · 2304.01408

A physically realizable molecular motor driven by the Landauer blowtorch effect

Riley J. Preston·Daniel S. Kosov
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Abstract

We propose a model for a molecular motor in a molecular electronic junction driven by a natural manifestation of Landauer's blowtorch effect. The effect emerges via the interplay of the electronic friction and diffusion coefficients, each calculated quantum mechanically using nonequilibrium Green's functions, within a semi-classical Langevin description of the rotational dynamics. The motor functionality is analysed through numerical simulations where the rotations exhibit a directional preference according to the intrinsic geometry of the molecular configuration. The proposed mechanism for motor function is expected to be ubiquitous for a range of molecular geometries beyond the one examined here.

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Riley J. Preston, Daniel S. Kosov. 2023-04-03. A physically realizable molecular motor driven by the Landauer blowtorch effect. https://doi.org/10.1063/5.0153000

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