Title :
Measurement System for Quantum Hall Effect Utilizing a Josephson Potentiometer
Author :
Endo, Tadashi ; Murayama, Yasushi ; Koyanagi, Masao ; Kinoshita, Joji ; Inagaki, Katsuya ; Yamanouchi, Chikako ; Yoshihiro, Kazuo
fDate :
6/1/1985 12:00:00 AM
Abstract :
In order to improve the measurement accuracy of the quantum Hail effect, a new method has been developed utilizing a Josephson potentiometer and a Superconducting Quantum Interference Device (SQUID) galvanometer. A relative uncertainty of a few parts in 108 can be realized for the measurement of the ratio of the quantized Hall resistance to a reference resistor using this method.
Keywords :
Electrical resistance measurement; Hall effect; Instruments; Laboratories; Linearity; Potentiometers; Resistors; SQUIDs; Superconducting device noise; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1985.4315336
