CnupA 2. You can determine a Lorenz constant from the Sommerfeld model. Using k =CnvFA = CnuT, the Drude result for conductivity and the Sommerfeld result for linear specific heat of electrons show that Lo = k/oT =(kB/e). At some point you will need the relationship between Fermi energy and Fermi velocity for non-relativistic particles. %3D
CnupA 2. You can determine a Lorenz constant from the Sommerfeld model. Using k =CnvFA = CnuT, the Drude result for conductivity and the Sommerfeld result for linear specific heat of electrons show that Lo = k/oT =(kB/e). At some point you will need the relationship between Fermi energy and Fermi velocity for non-relativistic particles. %3D
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