• Corpus ID: 222124842

Lorenz Number and Electronic Thermoelectric Figure of Merit: Thermodynamics and Direct DFT Calculations.

  title={Lorenz Number and Electronic Thermoelectric Figure of Merit: Thermodynamics and Direct DFT Calculations.},
  author={Yi Wang and Jorge Paz Soldan Palma and Shunli Shang and Long-Qing Chen and Zi-kui Liu},
  journal={arXiv: Materials Science},
The Lorenz number (L) contained in the Wiedemann-Franz law represents the ratio of two kinetic parameters of electronic charge carriers: electronic contribution to the thermal conductivity (K_el) and the electrical conductivity (sigma), through LT=K_el/sigma where T is temperature. We demonstrate that the Lorenz number simply equals to the ratio of two thermodynamic quantities: the electronic heat capacity (c_el) and the electrochemical capacitance (c_N) through LT=c_el/c_N , a purely… 



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