EFFECTS OF QUANTUM CONFINEMENT ON LOW FREQUENCY NOISE IN δ-DOPED GaAs STRUCTURES GROWN BY MBE

2002 ◽  
Vol 02 (01) ◽  
pp. L37-L45
Author(s):  
X. Y. CHEN ◽  
P. M. KOENRAAD
Keyword(s):  
Quantum Confinement ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Free Carriers ◽  
In Doping ◽  
Three Samples ◽  
Different Temperatures ◽  
Lower Magnitude ◽  
Different Thickness

Low frequency noise (LFN) was measured in δ-doped GaAs structures in which the free carriers are confined to a 2-dimensional plane. Three samples grown at different temperatures, resulting in doping layers of a different thickness, are used to study the effects of quantum confinement on the LFN. We observed both 1/f noise and generation-recombination noise components. We find that a stronger quantum confinement results in a bigger Hall mobility and a lower magnitude of the 1/f noise.

Low Frequency Noise in the Trap Free Insulated Diode with Thermal Free Carriers under Critical Condition

1974 ◽  
Vol 52 (5) ◽  
pp. 399-401
Author(s):  
Y. K. Sharma
Keyword(s):  
Critical Condition ◽  
Low Frequency ◽  
Critical Value ◽  
Spectral Intensity ◽  
Frequency Noise ◽  
Small Contribution ◽  
Low Frequency Noise ◽  
Potential Minimum ◽  
Free Carriers ◽  
Total Noise

An analytical expression for the spectral intensity of low frequency noise voltage, based on the method of regional approximation, has been calculated for the trap free insulated diode containing thermal free carriers; while current is equal or greater than the critical value. It is shown that the value of noise in the potential minimum gives a very small contribution to the total noise.

Estimating the Quality of Thermionic Cathodes for Microwave Vacuum Tubes Using the Low-Frequency Noise Parameters

Vestnik MEI ◽  
2018 ◽  
Vol 5 (5) ◽  
pp. 120-127
Author(s):  
Mikhail D. Vorobyev ◽  
◽  
Dmitriy N. Yudaev ◽  
Andrey Yu. Zorin ◽  
◽  
...  
Keyword(s):  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Noise Parameters ◽  
Thermionic Cathodes ◽  
Vacuum Tubes

Simulation of Low Frequency Noise in a CCTWT

1999 ◽  
Author(s):  
Charles K. Birdsall ◽  
J. P. Varboncoeur ◽  
P. J. Christensen
Keyword(s):  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise

Impacts of low-frequency noise from industrial sources in residential areas

2021 ◽  
Vol 182 ◽  
pp. 108203
Author(s):  
Lígia T. Silva ◽  
Alda Magalhães ◽  
José Ferreira Silva ◽  
Fernando Fonseca
Keyword(s):  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Residential Areas ◽  
Industrial Sources
Sign in / Sign up

Export Citation Format

Share Document