A two-dimensional polaronic donor in a magnetic field

Erçelebi, A.; Saqqa, Bassam

doi:10.1088/0022-3719/21/9/016

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Lattice deformation about the donor ion is taken care of by using where dq = Qs(&le*q4'l&). The wave function i s chosen to be @ = @eUIO) (Ercelebi andTom& 1985, Elangovan andNavaneethakrishnan 1992a).…”

Section: Theorymentioning

confidence: 99%

Binding energy of a bound polaron in strong magnetic fields in low-dimensional semiconductor systems

Elangovan

Navaneethakrishnan

1993

J. Phys.: Condens. Matter

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Ionization energies of a shallow donor in a quantum well (Q2D), quantum well wire (Q1D) and quantum box (Q0D) of the GaAs/Ga1-xAlxAs superlattice system in strong magnetic fields are obtained. The contributions from the electron-lattice coupling are also systematically investigated in all these systems. It is found that the ionization energy (Eion) (i) decreases with an increase in well width in Q2D, Q1D, and Q0D systems; (ii) increases with magnetic field for a given well width in all these systems, and (iii) increases as the spatial dimension is reduced for a given well width and magnetic field. The polaronic effect on Eion, that is, Delta Ee-1(B)/Eion( alpha =0,B) decreases when the magnetic field is increased in all three systems, showing a softening of the electron-lattice coupling. This decrease is more pronounced in Q2D than in Q1D or Q0D. The polaronic shift is also seen to be more important for systems with a smaller well width. The results are discussed in the light of the existing literature on these systems wherever available.

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Section: Theorymentioning

confidence: 99%

Binding energy of a bound polaron in strong magnetic fields in low-dimensional semiconductor systems

Elangovan

Navaneethakrishnan

1993

J. Phys.: Condens. Matter

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“…Since 1970s Scientific research into electronic structure had been devoted to two-dimensional structure -quantum wells [1,2], the new and unusual properties of quasi-two-dimensional systems, which promise applications mostly in electronics and opto-electronics, have attracted the attention of many researchers [3][4][5][6][7][8][9][10]. This in turn has resulted in a rapid development of production technology and extensive research.…”

Section: Introductionmentioning

confidence: 99%

Optical properties in a two-dimensional quantum ring: Confinement potential and Aharonov–Bohm effect

Liang

Xie

Shen

2011

Optics Communications

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Optical properties of a two-dimensional quantum ring with pseudopotential in the presence of an external magnetic field and magnetic flux have been theoretically investigated. Our results show that both of the pseudopotential and magnetic field can affect the third nonlinear susceptibility and oscillator strength. In addition, we found that the oscillator strength and the absolute value of the resonant peak of the linear, non-linear and total absorption coefficient vary periodically with magnetic flux, while the resonant peak value of the linear, non-linear and total refractive index changes decreases as magnetic flux increases.

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The cyclotron resonance of a three-dimensional impurity magnetopolaron in the presence of a strong parabolic potential

Au-Yeung¹,

Kho²,

Gu³

et al. 1994

J. Phys.: Condens. Matter

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In this investigation, we study the combined effects of a parabolic potential and a Coulomb impurity on the cyclomn resonance of a Ulreedimensional bound magnetopolaron, under the condition of strong parabolic potential. We only consider he c a e of weak electron-Lo-phonon coupling and apply h e n ' s permrbation method to the calmlaion of energy levels. The polaron resonances in a low-lying energy level are studied and m a i n cvclotron effective masses are +lculated. W e apply our calculations to GaAs.

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A two-dimensional polaronic donor in a magnetic field

Cited by 5 publications

References 8 publications

Binding energy of a bound polaron in strong magnetic fields in low-dimensional semiconductor systems

Binding energy of a bound polaron in strong magnetic fields in low-dimensional semiconductor systems

Optical properties in a two-dimensional quantum ring: Confinement potential and Aharonov–Bohm effect

The cyclotron resonance of a three-dimensional impurity magnetopolaron in the presence of a strong parabolic potential

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