Double-Barrier Resonant Tunneling in Nano-Optics and Quantum Mechanics: Wavelength-Scale Analysis by the Method of Single Expression

2019 ◽  
Author(s):  
Hovik V. Baghdasaryan ◽  
Tamara M. Knyazyan ◽  
Tamara T. Hovhannisyan ◽  
Marian Marciniak
Keyword(s):  
Quantum Mechanics ◽  
Resonant Tunneling ◽  
Scale Analysis ◽  
Double Barrier ◽  
Method Of Single Expression ◽  
Wavelength Scale ◽  
Double Barrier Resonant Tunneling

Simulation of GaAs/AlxGa1-xAs/InyGa1-y As Double-Barrier Resonant Tunneling Structures

2011 ◽  
Vol 399-401 ◽  
pp. 1093-1096
Author(s):  
Yuan Ming Zhou
Keyword(s):  
Transmission Coefficient ◽  
Current Density ◽  
Resonant Tunneling ◽  
Indium Content ◽  
Rapid Decrease ◽  
Supply Function ◽  
Double Barrier ◽  
Resonant Condition ◽  
Zero Bias ◽  
Double Barrier Resonant Tunneling

We study the resonant tunneling in symmetric GaAs/AlxGa1-xAs/InyGa1-yAs double-barrier resonant-tunneling structures. Effects of three factors on the resonant tunneling are simulated and discussed. On increasing the barrier height, the decrease of current density is attributed to the interplay between the increase of the supply function of available electrons and the rapid decrease of the transmission coefficient through the device area, and the lowest Indium content for realizing the zero-bias resonant tunneling increases. With the increase of the barrier (well) width, the decrease of the current density can be explained by the fact that both the supply function and the transmission coefficient decreases, and the lowest Indium content meeting the zero-bias resonant condition decreases.

Magnetic-field-induced modulation of intersubband scattering in a double-barrier resonant-tunneling structure

1996 ◽  
Vol 53 (20) ◽  
pp. 13651-13655 ◽  
Author(s):  
P. D. Buckle ◽  
J. W. Cockburn ◽  
M. S. Skolnick ◽  
R. Grey ◽  
G. Hill ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Resonant Tunneling ◽  
Double Barrier ◽  
Double Barrier Resonant Tunneling ◽  
Resonant Tunneling Structure

RESONANT TUNNELING IN DOUBLE BARRIER SEMICONDUCTOR NANO-STRUCTURES

1995 ◽  
Vol 09 (23) ◽  
pp. 3039-3051
Author(s):  
DILIP K. ROY ◽  
AJIT SINGH
Keyword(s):  
Quantum Measurement ◽  
Current Density ◽  
Resonant Tunneling ◽  
Tunneling Current ◽  
Double Barrier ◽  
Tunneling Diode ◽  
Nano Structures ◽  
Current Densities ◽  
Double Barrier Resonant Tunneling ◽  
Measurement Approach

The principles of operation of a double barrier resonant tunneling diode (DBRTD) giving rise to negative differential conductivity effect are first reviewed. Next, the physics of resonant tunneling based on (i) the time-independent conventional approach and (ii) the time-dependent quantum measurement approach, as applied to a DBRTD, is discussed. Expressions for the resonant tunneling current densities through the barriers are then derived on the ideas of quantum measurement. Through the well the current, however, flows by the conventional mechanism. The three current density magnitudes are found to be identical under resonant conditions. Finally, an expression for the resonant tunneling current density due to a group of incident electrons is derived.

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