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机译：研究新闻

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Liquid crystals (LCs), when subjected to temperature gradients, exhibit rotation of the director field induced by the heat (heat-flux-induced rotation, HIR), known as Lehmann rotation. A theoretical explanation for HIR was provided by Leslie, where the rotation was attributed to the existence of chirality (in chiral nematics) with the induced rotational speed being proportional to the strength of the chirality. So far HIR has mostly been experimentally demonstrated in LC droplets, close to the Iso-N* phase transition. Yoshiojka et al. in their 2018 Nature Communication demonstrate HIR in a dispersion system, in which the N* droplets are immersed in an isotropic oligomeric fluid. Interestingly, the HIR in the dispersion system is found to depend upon topology within the droplets, unlike in a pure LC system. The rotational conversion efficiencies have been determined for droplets having five different types of director configuration, where two specific configurations have shown efficiencies, which are several orders of magnitude higher than that what is known to date.
机译：当经受温度梯度时，液晶（LCS）表现出由热量（热通量诱导的旋转，HIR）引起的导向器场的旋转，称为Lehmann旋转。 Leslie提供了对HIR的理论解释，其中旋转归因于诸如性致动速度与手性的强度成比例的诱导的旋转速度归因于血管性（在手性网络中）。到目前为止，HIR主要在LC液滴中实验证明，靠近ISO-N *相变。 Yoshiojka等。在2018年的自然通信中，在分散系统中展示HIR，其中N *液滴浸入各向同性的低聚流体中。有趣的是，与纯LC系统不同，发现分散系统中的HIR取决于液滴内的拓扑。已经确定了具有五种不同类型导向器配置的液滴的旋转转换效率，其中两种特定的配置显示出效率，这是比迄今为止所知道的数量级的数量级。

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