Task: Text Categorization
Input (English): The flux-flow coefficient for this effect in type II superconductors is directly proportional to the Hall effect coefficient. The basic equations involving it were formulated by Lord Kelvin and are now considered a special case of the generalized Onsager relations. One source of it is phonon-electron collision, or drag, in the material, which can be estimated from the lattice heat capacity, and the other source, charge carrier diffusion, from Mott theory. When its coefficient is multiplied by the Thomson coefficient, the Peltier coefficient is produced. FTP, name this effect where a potential difference is created by a temperature gradient, utilized in thermocouples.
Output (English): Science