Noise Measurements of a Superconducting Single Electron Transistor (SSET) at T= 0.3 K

A superconducting single electron transistor, based on aluminum electrodes, was fabricated and studied. The characterization was made by measuring both the transport properties as a function of temperature and the noise performance. As a result, we observed modulation of the transfer characteristics up to 1.4K and we measured a charge sensitivity of 3.8 10-4 e/?Hz at 10 Hz and 0.3 K.