被动超构手性固体中的非经典热流是三阶而非奇数阶的
Nonclassical heat flow in passive chiral solids is third rank, not odd
AI总结：
本文研究了手性各向同性gyroid晶格中的非经典热流现象，发现其热效应不符合二阶奇数张量，而与提供旋度项的三阶张量属性一致，并提出了确定手性长度尺度的方法，展示了3D打印超构材料中可调谐的手性。
摘要：
观测表明，手性且方向各向同性的gyroid晶格表现出非经典热效应，这与不对称（“奇数”）二阶电导率张量不相容，但与提供旋度项的三阶张量属性一致。该晶格是被动材料，因此无需驱动扭矩即可获得横向流。本文提供了一种确定与手性相关的长度尺度的方法。通过3D打印制造的聚合物gyroid晶格是一种超构材料，允许通过几何形状调节手性。
英文摘要：
Chiral, directionally isotropic gyroid lattices are observed to exhibit nonclassical thermal effects incompatible with an asymmetric ("odd") second rank conductivity tensor but consistent with a third rank tensor property that provides a curl term. The lattices are passive materials so no driving torques are needed to obtain transverse flow. A method for determination of the length scale associated with chirality is provided. The polymer gyroid lattice made by 3D printing is a metamaterial which allows chirality that is tunable by geometry.
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