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Updated: Jul 24, 2025

Characterization of Thermal Transport in One-dimensional Solid Materials
Published on: January 26, 2014
Thermal resistance network model for thermal conductivity of normal liquid helium-4 and helium-3
Dan Huang1, Jinxing Zhong2, Saqlain Raza3
1Phonon Engineering Research Center of Jiangsu Province, Center for Quantum Transport and Thermal Energy Science, Institute of Physics Frontiers and Interdisciplinary Science, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, People's Republic of China.
Abstract:
Liquid heliums are intriguing substance. Superfluid states below certain critical temperatures, notably liquid helium-4 and helium-3 exhibit ultra-high thermal conductivity ( TC) in the superfluid phase. However, the microscopic origin of the TC of liquid heliums in the normal phase remains unclear. In this work, we employ the thermal resistance network model to calculate the thermal conductivities of normal liquid helium-4 (He I) and helium-3. Predicted values are not only in good agreement with the measurements but also reproduce the experimental trend of TC increasing with temperature and pressure.
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