HOT-ELECTRONS EFFECT IN A NUMBER-23 NTD GE SAMPLE

We have measured thermal properties of Neutron Transmutation Doped Ge (type #23 from E. E. Haller) at very low temperatures (down to 20 mK). Both R versus T characteristics and thermal decoupling were considere d. We show that, for our sample, the thermal decoupling can be well de scribed with the hot electron model. Our results are consistent with t hose obtained for other doping concentrations NTD Ge. Finally, we comp are the two decoupling mechanisms (electron-phonon and phonon-bath) an d show that they are comparable in magnitude for standard running cond itions of bolometers.