DocumentCode
2747062
Title
Noise and cross-correlation spectra of quantum hall devices
Author
Schurr, J. ; Pierz, K. ; Callegaro, L. ; Ortolano, M.
Author_Institution
Phys.-Tech. Bundesanstalt, Braunschweig, Germany
fYear
2012
fDate
1-6 July 2012
Firstpage
189
Lastpage
190
Abstract
A two-channel analog-to-digital converter was used to investigate the noise of the cryogenic quantum Hall resistance. Without applied current, only thermal Johnson-Nyquist noise is present. With applied current, excess noise due to dissipation bursts appears which dramatically increases with the non-integer fraction of the filling factor.
Keywords
analogue-digital conversion; electric resistance measurement; measurement standards; noise measurement; quantum Hall effect; resistors; thermal noise; thermal variables measurement; cross correlation spectra; cryogenic quantum Hall resistance; filling factor; noise spectra; noninteger fraction; quantum Hall devices; thermal Johnson-Nyquist noise; two channel analog-digital converter; Current measurement; Electrical resistance measurement; Filling; Noise; Noise measurement; Preamplifiers; Resistance; Quantum Hall effect; colored noise; correlation; noise measurement; white noise;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location
Washington, DC
ISSN
0589-1485
Print_ISBN
978-1-4673-0439-9
Type
conf
DOI
10.1109/CPEM.2012.6250865
Filename
6250865
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