Excited states and infrared transition energies of a donor impurity in cylindrical GaAs–Ga0.6Al0.4As quantum well wires under the action of an applied magnetic field

Villamil, Pablo; Cabra, Carlos; Porras‐Montenegro, N.

doi:10.1016/j.mejo.2005.02.028

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…Similarly, the infrared transition of an impurity atom in the cylindrical GaAs-Ga 0.6 Al 0.4 As quantum well wires under an external magnetic field were shown to be depending upon geometrical confinement of the wire [13]. It was proved that the conductive subband structure of wire exhibits the blue shift effect by non-resonant transverse laser field [14].…”

Section: Introductionmentioning

confidence: 99%

The Effect on the Optical Absorption Coefficients due to the Positions in the Plane of Square GaAs / Al(GaAs) Quantum Well Wire under the Laser Field

et al. 2019

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The laser field effects on the electronic and optical properties depending on two different positions in the plane of GaAs/Al (GaAs) quantum wire with square cross sections have been investigated. The electron energy levels and the electronic wave functions of the wires are calculated using the finite differences method within the effective mass approximation. The differences of the total absorption coefficients and the reflection index changes sourced from the cross-sectional shape were determined and explained with and without laser field. From the results the blue shift and red shift effects on the total absorption coefficients and the reflection index changes were identified depending on the laser field strength and the positions of square GaAs/Al(GaAs) quantum well wire in the plane.

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Section: Introductionmentioning

confidence: 99%

The Effect on the Optical Absorption Coefficients due to the Positions in the Plane of Square GaAs / Al(GaAs) Quantum Well Wire under the Laser Field

et al. 2019

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“…The quantum confinement determines the enlargement of the band gap [13] and leads to the breakdown of the momentum conservation rule [14], as well as the appearance of new energy levels and supplementary transitions [11,12]. The calculation of the binding and transition energies for a shallow donor impurity in cylindrical QWWs as a function of the wire radius have been reported [15]. In this paper, we have employed quantum confinement (QC) to study different shapes of nanocrystalline silicon (nc-Si) quantumdots based on the quantum selection rule and investigating their size dependent electronic energy as a function of their effective diameter on single material level in order to reveal the basic mechanism of its electronic properties as the main goals of the present work.…”

Section: Introductionmentioning

confidence: 99%

A Quantum Confinement Study of the Electronic Energy of some Nanocrystalline Silicon Quantum-Dots

Ekong

Osiele

2016

ILCPA

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ABSTRACT. We have employed a quantum confinement (QC) model to the study of different shapes of nanocrystalline silicon (nc-Si) quantum dot. Each dots (shapes), although within the limits of an effective diameter of 3nm, exhibits divergence leading to different electronic energy based on the transitions from the quantum selection rule. Also, the graphical representation of the energies from each shape as a function of the effective diameter gives a qualitatively similar spectrum of discrete energies. The results obtained in this work using QC model are in good agreement with experiment and other models in literature.

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“…Manyetik alanın uygulanması safsızlık durumlarının simetrisini ve dalga fonksiyonunun doğasını değiştirdiği için bağlanma enerjisinde çok belirgin değişiklikler ortaya çıkarır. Bu nedenle farklı potansiyel geometrilerine sahip kuantum kuyularında kuşatılan hidrojenik donorlar üzerinde manyetik alan etkileri yoğun olarak araştırılmaktadır [15][16][17][18][19][20].…”

Section: Introductionunclassified

Parabolik Kuantum Kuyusundaki Hidrojenik Düzeyler Üzerine Manyetik Alan Etkisi

Yesilgül¹,

Çoban²,

Kasapoğlu³

2015

CFD

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Özet. Bu çalışmada, tek parabolik kuantum kuyusunda 1s, 2s ve 2p± düzeylerindeki donor safsızlık atomunun bağlanma enerjisi, etkin kütle yaklaşımında varyasyonel olarak, kuyu genişliği ve dışarıdan uygulanan manyetik alanın bir fonksiyonu olarak hesaplamıştır. Ayrıca, GaAs/Ga1-xAlxAs tek parabolik kuantum kuyusunda hidrojenik düzeyler arasındaki kızılötesi geçişler üzerinde manyetik alanın etkisi incelenmiştir.Anahtar Kelimeler: Parabolik kuantum kuyusu, Safsızlık bağlanma enerjisi, Manyetik alan Effect of Magnetic Field on Hydrogenic Energy Levels in Parabolic Quantum WellAbstract. In this study, the binding energy of the donor impurity at 1s, 2s and 2p± states in a parabolic quantum well is calculated variationally within the effective mass approximation as a function of the quantum well width and the external magnetic field. Furthermore, the effects of the magnetic field on the infrared transitions between the hydrogenic states in a parabolic quantum well under are investigated.

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Excited states and infrared transition energies of a donor impurity in cylindrical GaAs–Ga0.6Al0.4As quantum well wires under the action of an applied magnetic field

Cited by 9 publications

References 21 publications

The Effect on the Optical Absorption Coefficients due to the Positions in the Plane of Square GaAs / Al(GaAs) Quantum Well Wire under the Laser Field

The Effect on the Optical Absorption Coefficients due to the Positions in the Plane of Square GaAs / Al(GaAs) Quantum Well Wire under the Laser Field

A Quantum Confinement Study of the Electronic Energy of some Nanocrystalline Silicon Quantum-Dots

Parabolik Kuantum Kuyusundaki Hidrojenik Düzeyler Üzerine Manyetik Alan Etkisi

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