Nonlinear voltage dependence of shot noise

Article

关键词: MESOSCOPIC MULTIPROBE CONDUCTORS;    RESONANT-TUNNELING STRUCTURES;    SCATTERING-THEORY;    CONTACTS;    TRANSPORT;    SUPPRESSION;    SYSTEMS;    CAPACITANCE;    MATRIX;   

DOI  :  10.1103/PhysRevB.60.16900

来源: SCIE

【 摘 要 】

The electron shot noise in a multiprobe mesoscopic conductor can have a nonlinear dependence on the strength of driving bias voltage. This paper presents a theoretical formulation for the nonlinear noise spectra. We pay special attention to maintain gauge invariance at the nonlinear level. At small but finite voltages, explicit expressions for nonlinear noise spectra, expanded order by order in the bias, have been derived, in the wideband limit, a closed-form solution of the noise spectra for finite voltages is obtained. [S0163-1829(99)01548-9].

【 授权许可】

Free