论文标题
3D拓扑半学ZRTE5中的热传输特性和某些流体动力学行为
Thermal transport properties and some hydrodynamic-like behavior in 3D topological semimetal ZrTe5
论文作者
论文摘要
由于必须满足的严格条件，因此在有限数量的化合物中仅在有限数量的化合物中证明了凝结物理学中的流体动力流动性。本文中，我们在三维拓扑半学ZRTE5中进行了热和电运输实验。通过测量较大温度范围内的热性能，在弹道和扩散状态之间的温度窗口中观察到了两个代表性的实验证据：热导率的速度比在弹道方案和非单调温度依赖性依赖性有效的quasiparticle平均无主path中的速度更快。此外，磁性电导率结果表明，带电的准粒子以及声子也可能在ZRTE5中这种流体动力的流动中起重要作用。
Hydrodynamic fluidity in condensed matter physics has been experimentally demonstrated only in a limited number of compounds due to the stringent conditions that must be met. Herein, we performed thermal and electrical transport experiments in three-dimensional topological semimetal ZrTe5. By measuring the thermal properties in a wide temperature range, two representative experimental evidences of the hydrodynamics are observed in temperature window between the ballistic and diffusive regimes: a faster evolution of the thermal conductivity than in the ballistic regime and the non-monotonic temperature-dependent effective quasiparticle mean-free-path. In addition, magneto-thermal conductivity results indicate that charged quasiparticles, as well as phonons, may also play an important role in this hydrodynamic-like flow in ZrTe5.
