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The detailed dynamics of crystalline solids allows the calculation of both the heat capacity and the thermal conductivityThermal conductivity. Max Born provided a solid foundation for this subject in his magisterial monograph, Dynamic Theory of Crystal Lattices. Metallic crystals exhibit heat capacities comparable to non-conducting substances, but have much larger thermal conductivities. This is due to the transport of heat by “free electrons.” The theory of electrons in metals introduced by Fermi and Dirac[aut]Dirac, Paul (1902-1984) is presented. The empirical relation between the electrical conductivity and the electronic contribution to the thermal conductivity is discussed.

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Max Born: The Importance of Phonons and Electrons in the Science of Heat

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  • 发表日期：

    2025年

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  • Gary D. Patterson

摘要

The detailed dynamics of crystalline solids allows the calculation of both the heat capacity and the thermal conductivityThermal conductivity. Max Born provided a solid foundation for this subject in his magisterial monograph, Dynamic Theory of Crystal Lattices. Metallic crystals exhibit heat capacities comparable to non-conducting substances, but have much larger thermal conductivities. This is due to the transport of heat by “free electrons.” The theory of electrons in metals introduced by Fermi and Dirac[aut]Dirac, Paul (1902-1984) is presented. The empirical relation between the electrical conductivity and the electronic contribution to the thermal conductivity is discussed.