scholarly journals Quenching effect of oscillating potential on anisotropic resonant transmission through a phosphorene electrostatic barrier

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
R. Biswas ◽  
C. Sinha
Keyword(s):  
Resonant Tunneling ◽  
Low Frequency ◽  
Shape Resonance ◽  
Small Oscillations ◽  
Quenching Effect ◽  
Zigzag Direction ◽  
Resonant Transmission ◽  
Angular Average ◽  
Oscillating Potential ◽  
Distinct Line

AbstractThe anisotropy in resonant tunneling transport through an electrostatic barrier in monolayer black phosphorus either in presence or in absence of an oscillating potential is studied. Non-perturbative Floquet theory is applied to solve the time dependent problem and the results obtained are discussed thoroughly. The resonance spectra in field free transmission are Lorentzian in nature although the width of the resonance for the barrier along the zigzag (Г–Y) direction is too thinner than that for the armchair (Г–X) one. Resonant transmission is suppressed for both the cases by the application of oscillating potential that produces small oscillations in the transmission around the resonant energy particularly at low frequency range. Sharp asymmetric Fano resonances are noted in the transmission spectrum along the armchair direction while a distinct line shape resonance is noted for the zigzag direction at higher frequency of the oscillating potential. Even after the angular average, the conductance along the Г–X direction retains the characteristic Fano features that could be observed experimentally. The present results are supposed to suggest that the phosphorene electrostatic barrier could be used successfully as switching devices and nano detectors.

Resonant transmission in the base/collector junction of a bipolar quantum‐well resonant‐tunneling transistor

1991 ◽  
Vol 59 (26) ◽  
pp. 3413-3415 ◽  
Author(s):  
A. C. Seabaugh ◽  
Y.‐C. Kao ◽  
W. R. Frensley ◽  
J. N. Randall ◽  
M. A. Reed
Keyword(s):  
Quantum Well ◽  
Resonant Tunneling ◽  
Resonant Transmission ◽  
Collector Junction

Generation of low-frequency higher harmonics in a resonant-tunneling diode

2014 ◽  
Vol 48 (7) ◽  
pp. 954-960
Author(s):  
V. F. Elesin ◽  
I. Yu. Kateyev ◽  
A. Yu. Sukochev ◽  
I. Yu. Bezotosny ◽  
M. P. Bezhko
Keyword(s):  
Resonant Tunneling ◽  
Low Frequency ◽  
Resonant Tunneling Diode ◽  
Higher Harmonics ◽  
Tunneling Diode

SCATTERING AND TUNNELING IN ACTIVE SYSTEMS

2011 ◽  
Vol 25 (20) ◽  
pp. 1691-1700 ◽  
Author(s):  
Y. BENNABI ◽  
A. B. HAMMOU ◽  
N. ZEKRI
Keyword(s):  
Resonant Tunneling ◽  
Double Barrier ◽  
Absorption Region ◽  
Active Systems ◽  
One Dimensional ◽  
Resonant Transmission ◽  
Tunneling Energy ◽  
Rectangular Barrier ◽  
Transmission Phase ◽  
Transmission And Reflection

The scattering properties of one-dimensional potential with gain are studied by using a Schrödinger-like equation. The corresponding Hamiltonian is non-Hermitian with a real energy spectrum. The amplification-absorption duality previously observed is interpreted in terms of the transmission and reflection phases. For a rectangular barrier, the transmission phase oscillates with the barrier width as for passive systems, but the oscillations period is significantly reduced in the absorption region. In this region the reflection phase vanishes and the multiple scattering and interferences dominate. The gain effect is also investigated for double barrier structures as well as superlattices with active potentials. It is found that resonant tunneling energy and the mini-band width are not influenced by the gain, but the transmission is enhanced for small values of the potential imaginary part. For large values, the resonant transmission significantly decreases and the mini-bands disappear.

Study on breakdown characteristics of a low-pressure dielectric barrier discharge

2007 ◽  
Vol 73 (3) ◽  
pp. 417-426
Author(s):  
YI-MING LING
Keyword(s):  
Theoretical Analysis ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Secondary Electron Emission ◽  
Low Frequency ◽  
Low Pressure ◽  
Dielectric Barrier ◽  
Quenching Effect ◽  
Discharge Tubes ◽  
Electron Avalanches

AbstractThe breakdown characteristics of a low-frequency dielectric barrier discharge (DBD) at low pressure are investigated experimentally in He, Ne and Ar. The current waveform of this DBD, a series of pulses, is caused by the results of the electron avalanches under the action of the applied field and the quenching effect of the wall-charge field on the avalanches. Taking into consideration the diffusion loss of the charged particles in the breakdown processes, the experimental investigation and the theoretical analysis of its breakdown characteristics indicate that its breakdown voltage is higher than the calculation by the Paschen law and depends on the filled-gas pressure and the distance between the electrodes, instead of their product. The ion-induced secondary electron emission coefficient and the mean electron energy at the moment of breakdown can also be determined approximately by measuring the breakdown characteristics of the discharge tubes with different distances between the electrodes and combining the theoretical deductions. The experimental results and the theoretical analysis of the breakdown characteristics of this DBD are discussed.

UNITY RESONANCE AND UNDER-UNITY RESONANCE CONDITIONS IN ASYMMETRICAL DOUBLE-BARRIER STRUCTURES

1995 ◽  
Vol 09 (17) ◽  
pp. 2119-2137 ◽  
Author(s):  
X.D. ZHAO ◽  
H. YAMAMOTO ◽  
K. TANIGUCHI
Keyword(s):  
Resonant Tunneling ◽  
Resonance Condition ◽  
Mass Difference ◽  
Wave Functions ◽  
Double Barrier ◽  
At Resonance ◽  
Resonant Transmission ◽  
Arbitrary Potential ◽  
Analytical Expressions ◽  
Peak Value

Resonant tunneling is studied theoretically in asymmetrical double-barrier structures with arbitrary potential profile. Analytical expressions of the transmission coefficient and resonance condition are derived by taking into account the mass difference between the well and barrier layers. It is confirmed that resonant tunneling with unity resonant transmission or under-unity resonant transmission may occur in asymmetrical double-barrier structures. Two independent conditions are required for unity resonant transmission: one is the Phase Difference Condition for Resonance (PDCR) and the other is the Maximum Condition for the Peak Value (MCPV). The under-unity resonant transmission occurs when only PDCR holds. Furthermore, wave functions of an electron at resonance level are calculated and the confining phenomenon is studied.

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