Title :
Stable cryogenic vacuum capacitor for single-electron charging experiments
Author :
Willenberg, Gerd-Dietmar ; Warnecke, Peter
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
fDate :
4/1/2001 12:00:00 AM
Abstract :
For use in our single-electron charging experiment, a novel cryogenic vacuum capacitor has been developed which is superior to the previous parallel-plate design. Due to its coaxial design consisting of a long cylindrical center electrode and a shorter cylindrical ring electrode, it is inherently stable against mechanical vibrations and thermal cycling. Electrical insulation is achieved by the exclusive use of sapphire, which promises extremely low leakage currents
Keywords :
Coulomb blockade; capacitance measurement; capacitors; ceramic insulation; low-temperature techniques; measurement standards; mechanical stability; single electron transistors; thermal stability; 1.435 pF; 4.2 K; Al2O3; SET charging; capacitance standard; coaxial design; extremely low leakage currents; long cylindrical center electrode; mechanical vibrations; sapphire insulation; shorter cylindrical ring electrode; single-electron charging; stable cryogenic vacuum capacitor; thermal cycling; Calibration; Capacitance; Capacitors; Cryogenics; Dielectrics and electrical insulation; Electrodes; Electrons; Frequency; Phase measurement; Temperature;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
