DocumentCode
1455640
Title
Influence of the voltage contacts on the four-terminal quantized Hall resistance in the nonlinear regime
Author
Jeckelmann, Beat ; Jeanneret, Blaise
Author_Institution
Swiss Federal Office of Metrol., Wabern, Switzerland
Volume
46
Issue
2
fYear
1997
fDate
4/1/1997 12:00:00 AM
Firstpage
276
Lastpage
280
Abstract
The influence of the contacts on the value of the quantized Hall resistance has been studied in a series of high-precision measurements. Deviations of the Hall resistance of up to 0.35 μΩ/Ω from the expected value were observed in a device in which the resistance of one of the voltage contacts used in the measurement was comparable to the Hall resistance. The edge-state theory of contacts gives no satisfactory estimate for the observed deviations
Keywords
electric resistance measurement; quantum Hall effect; units (measurement); Hall resistance; edge-state theory; four-terminal quantized Hall resistance; high-precision measurement; nonlinear regime; voltage contacts; Contact resistance; Current measurement; Electrical resistance measurement; Electrons; Gallium arsenide; Geometry; Guidelines; Metrology; Temperature distribution; Voltage;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.571831
Filename
571831
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