It has been reported that the Peltier heat pumping rate of a thermoelectric
converter can be increased by additional heat exchange at a Fermi gas/Ferm
i liquid (FG/FL) interface. This additional heat is associated with electro
n phase transitions between the Fermi gas and Fermi liquid. A practical con
figuration of a novel thermoelectric converter based on FG/FL interfaces is
proposed and the possibility of improving the efficiency of a thermoelectr
ic converter which employs this radically new approach is discussed.