Original title: The Effect of Geometry on Thermodynamic Response
Bojana Bokic, Sébastien R. Mouchet, Biljana Stankov, Sanja Ostojic +8 · August 2026
Tiny patterns at the micro- and nanoscale shape how light and heat move. Living things rely on these tiny shapes to survive, and engineers need to control heat radiation for energy devices and electronics. Yet, how heat radiation works at this tiny scale has remained unclear. In this study, researchers investigated how complex nanoscale shapes influence thermal management. They tracked heat capacityHow much energy a material needs to raise its temperature by one degree., which is a measurement of how much heat an object absorbs as its temperature changes. They found that complex geometries cause an unusual thermal response in these heat-capacity measurements. By identifying the exact structural constraints behind this behavior, the researchers showed that changing a system's physical shape can alter its apparent heat capacity without needing to change its chemical makeup at all.
Imagine filling a backpack with books. You expect the weight to depend only on which books you pack, not on how you arrange them. But if the backpack were shaped in a strange way, the same books might feel heavier or lighter because of how they press against the fabric. In this paper, the geometry of a material changes how its heat capacity is measured, without changing what the material is made of.
Engineers could design heat storage or dissipation by sculpting a material's shape rather than mixing new chemicals. This might simplify making devices that manage heat more efficiently, from phone chips to solar panels.
The paper provides evidence but does not establish a complete physical model or demonstrate practical devices. The effect is observed in specific nanoscale geometries; generality across materials and shapes is not yet proven. The work identifies constraints but does not quantify the effect's magnitude or control limits.
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The Effect of Geometry on Thermodynamic Response — Bojana Bokic, Sébastien R. Mouchet, Biljana Stankov et al.
Abstract licence: CC0
Explanation generated by Synthesis from the abstract — it is not the original paper. This is a preprint, so it hasn't necessarily been peer reviewed.