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.
Noise and Cross-correlation Spectra of Quantum Hall Devices / Schurr, J; Pierz, K; Callegaro, Luca; Ortolano, M.. - (2012), pp. 189-190. (Intervento presentato al convegno 2012 Conference on Precision Electromagnetic Measurement (CPEM) tenutosi a Washington DC, USA nel 1-6 luglio 2012).
Noise and Cross-correlation Spectra of Quantum Hall Devices
CALLEGARO, LUCA;
2012
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.