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arXiv · 2011.01597

Thermal transport properties and some hydrodynamic-like behavior in 3D topological semimetal ZrTe5

Chang-woo Cho·Peipei Wang·Fangdong Tang·Sungkyun Park·Mingquan He·Rolf Lortz·Genda Gu·Qiang Li·Liyuan Zhang
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Abstract

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.

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Chang-woo Cho, Peipei Wang, Fangdong Tang, Sungkyun Park, Mingquan He, Rolf Lortz, Genda Gu, Qiang Li, Liyuan Zhang. 2020-11-03. Thermal transport properties and some hydrodynamic-like behavior in 3D topological semimetal ZrTe5. https://doi.org/10.1103/physrevb.105.085132

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