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Title: Impedance field and transition from thermal to shot noise in Cd1-xZnxTe semi-insulating Ohmic detectors
Author: Rosini, M.
Reggiani, L. (Lino), 1941-
Gomila Lluch, Gabriel
Keywords: Física de l'estat sòlid
Electrònica quàntica
Electronic transport in condensed matter
Electronic structure and electrical properties of surfaces
Quantum electronics
Issue Date: 2007
Publisher: The American Physical Society
Abstract: Within a drift-diffusion model we investigate the role of the self-consistent electric field in determining the impedance field of a macroscopic Ohmic (linear) resistor made by a compensated semi-insulating semiconductor at arbitrary values of the applied voltage. The presence of long-range Coulomb correlations is found to be responsible for a reshaping of the spatial profile of the impedance field. This reshaping gives a null contribution to the macroscopic impedance but modifies essentially the transition from thermal to shot noise of a macroscopic linear resistor. Theoretical calculations explain a set of noise experiments carried out in semi-insulating CdZnTe detectors.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2007, vol. 75, núm. 4, p. 045209-1-045209-9
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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