Theoretical investigations of resonant tunneling in asymmetric multibarrier semiconductor heterostructures in an applied constant electric field

Allen, Shaune S.; Richardson, Steven L.

doi:10.1103/physrevb.50.11693

Cited by 55 publications

(24 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An analytical expression for the transmission coefficient (11) is derived. Based on this expression, it is found that unity resonance takes place if maximum condition (13) and phase difference condition (14) are satisfied simultaneously. Next, expression (17) for the probability density of the center well region is derived and is used to obtain Eq.…”

Section: Discussionmentioning

confidence: 96%

“…No unity resonance of T = 1 takes place with either maximum condition (13) or phase difference condition (14), but under-unity resonance is realized. As an example, Fig.…”

Section: Unity Resonant Condition and Under-unity Resonancementioning

confidence: 95%

“…Theoretical works on symmetric double-barrier structures [8,9], the most fundamental structures for the resonant tunneling phenomenon, and on symmetric triple [5,10] or quadruple [11,12] layer structures with interactions between the wells have been reported. Theoretical studies on asymmetric double-barrier structures under an applied bias have been performed [13,14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical study on tunneling phenomena in asymmetrical rectangular double‐barrier structures with acceleration well

Hamaguchi¹,

Yamamoto²,

Yamada³

2004

Electron Comm Jpn Pt II

View full text Add to dashboard Cite

SUMMARYAs a promising resonant tunneling structure for reduction of tunneling time, the "asymmetric rectangular double-barrier structure with an acceleration well" is proposed. Analytical expressions are derived for the tunneling transmission coefficient of the electrons and for the resonant condition. Also, the condition for the shortest tunneling time is analytically studied by using the dwell time as the tunneling time. From the resonant condition, the width of each layer can be determined for a given resonant energy. The resultant dwell time is calculated and discussed in terms of both theoretical and numerical analysis. Although the model proposed in this research is an idealized one, the proposed structure and the obtained results are considered useful in the design of tunneling devices in the sense that the tunneling time can be controlled.

show abstract

Section: Discussionmentioning

confidence: 96%

“…No unity resonance of T = 1 takes place with either maximum condition (13) or phase difference condition (14), but under-unity resonance is realized. As an example, Fig.…”

Section: Unity Resonant Condition and Under-unity Resonancementioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical study on tunneling phenomena in asymmetrical rectangular double‐barrier structures with acceleration well

Hamaguchi¹,

Yamamoto²,

Yamada³

2004

Electron Comm Jpn Pt II

View full text Add to dashboard Cite

show abstract

“…Comparing all these methods, TMT is considered as one of the effective and accurate method by eminent researchers. Resonant tunneling phenomenon for these devices under applied field [1], [5], [29]- [30] provides a theoretical estimation about transmission coefficient and tunneling current.…”

Section: Introductionmentioning

confidence: 99%

Effect of Dimension & Material Composition on Transmission Coefficient and Tunneling Current of Double Quantum Barrier Structure with Band Nonparabolicity

Deyasi¹,

Ghosh²

2012

BIJPSIC

View full text Add to dashboard Cite

show abstract

“…A comparative analysis among these methods reveals the fact that TMT is one of the best efective procedures. For multibarrier structure analysis at biasing condition, a theoretical estimation about transmission coeicient [17,38,[42][43][44][45] gives corresponding estimation of eigenstates. Signiicant theoretical contributions on quantum well multilayered heterostructures deal with resonant tunneling mechanism, which is obtained based on accurate solution of the Schrodinger equation subject to the application of uniform magnetic ield or constant electric ield applied along the perpendicular direction of coninement or along the direction of coninement.…”

Section: Introductionmentioning

confidence: 99%

Electronic Band Structure of Quantum Cascade Laser

Deyasi¹

2017

Quantum Cascade Lasers

View full text Add to dashboard Cite

Multiple quantum well structure is the subject of theoretical and experimental research over the last two decades due to the possibility of making novel electronic and optoelectronic devices. The phenomenon of resonant tunneling makes it a prime candidate for all tunneling-based quantum devices with one-dimensional coninement. THz laser design using multilayered low-dimensional semiconductor structure is one such example, where miniband formation and its energy diference with lowest quantum state play crucial factor in governing device performance. Quantum cascade laser (QCL) is one of such candidate, which speaks in favor of research using multiple-quantum-well (MQW) structure. In the proposed chapter, transmission coeicient of multiple quantum-well structure is numerically computed using propagation matrix technique, and its density of states is calculated in the presence and absence of electric ield applied along the direction of quantum coninement. Absorption coeicient is also calculated for its possible application as optical emiter/detector. Based on the electronic and photonic properties investigated, electronic band structure of the quantum cascade laser (formed using the MQW structure) is computed. Formation of miniband is tailored with variation of external bias is shown.

show abstract

Theoretical investigations of resonant tunneling in asymmetric multibarrier semiconductor heterostructures in an applied constant electric field

Cited by 55 publications

References 24 publications

Theoretical study on tunneling phenomena in asymmetrical rectangular double‐barrier structures with acceleration well

Theoretical study on tunneling phenomena in asymmetrical rectangular double‐barrier structures with acceleration well

Effect of Dimension & Material Composition on Transmission Coefficient and Tunneling Current of Double Quantum Barrier Structure with Band Nonparabolicity

Electronic Band Structure of Quantum Cascade Laser

Contact Info

Product

Resources

About