Title :
Contactless measurements of the internal capacitance of a Corbino ring in the quantum Hall regime
Author :
Jeanneret, Blaise ; Jeckelmann, Beat ; Hall, Blair D.
Author_Institution :
Fed.. Office of Metrol., Bern-Wabern, Switzerland
fDate :
4/1/1999 12:00:00 AM
Abstract :
A fully inductive technique has been used to observe the quantum Hall effect without any electrical connection to the two-dimensional electron gas. The ac response of the measuring system is described by a model taking into account the effect of the intrinsic capacitance of the Corbino ring. This internal capacitance is on the order of 100 pF/m for a 1 mm wide sample, a value which is not negligible in the field of ac quantum metrology
Keywords :
Corbino effect; capacitance measurement; quantum Hall effect; two-dimensional electron gas; AC quantum metrology; Corbino ring; contactless measurement; inductive technique; internal capacitance; quantum Hall effect; two-dimensional electron gas; Capacitance measurement; Coils; Electrical resistance measurement; Electrons; Hall effect; Laboratories; Magnetic field measurement; Measurement standards; Metrology; Quantum capacitance;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
