Direct observation of magnetoplasmon-phonon coupled modes in the magnetophotoluminescence spectra of the two-dimensional electron gas in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">In</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="italic">x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="no

Butov, L. V.; Grinev, V. I.; Kulakovskiĭ, V. D.; Andersson, T. G.

doi:10.1103/physrevb.46.13627

Cited by 16 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here, a recombination of an interband electron-hole pair is accompanied by electronic transitions across the cyclotron gap. Shakeup satellites, corresponding to excitation of magnetoplasmons as well as to inter-LL Auger transitions, were observed in a number of experiments [24,25,26,27,28,29,30,31,32], in agreement with earlier theoretical predictions [33,34,35]. The general expression for the ground state luminescence intensity has the form [16] I(ω)…”

Section: Magnetoplasmon Shakeup In Semiconductor Quantum Wellssupporting

confidence: 84%

See 1 more Smart Citation

Many-body luminescence from highly excited quantum-confined structures

Shahbazyana¹,

Raikhb²

2004

Theoretical and Computational Chemistry

View full text Add to dashboard Cite

Section: Magnetoplasmon Shakeup In Semiconductor Quantum Wellssupporting

confidence: 84%

“…Using the relation (25), the periodic fields take the form φjα (x, t) = k 2π L|k| e −|k|ǫ/2 θ(kα) cosh λ j + θ(−kα) sinh λ j e ikx−iṽ j |k|t c kj + e −ikx+iṽ j |k|t c † kj .…”

Section: Calculation Of the Green Functionmentioning

confidence: 99%

Many-body luminescence from highly excited quantum-confined structures

Shahbazyana¹,

Raikhb²

2004

Theoretical and Computational Chemistry

View full text Add to dashboard Cite

“…This is further evidence for the 2D nature of the carriers involved since coupling to the TO phonon mode is absent in 3D systems. 48 In conclusion, we have carried out optical studies of the single GaAs/AlAs core-multi-shell NW in high magnetic field. We have compared the obtained results with the typical spectra collected for single GaAs/AlAs core-shell NW with comparable diameter.…”

mentioning

confidence: 98%

Unintentional High-Density p-Type Modulation Doping of a GaAs/AlAs Core–Multishell Nanowire

et al. 2014

View full text Add to dashboard Cite

Achieving significant doping in GaAs/AlAs core/shell nanowires (NWs) is of considerable technological importance but remains a challenge due to the amphoteric behavior of the dopant atoms. Here we show that placing a narrow GaAs quantum well in the AlAs shell effectively getters residual carbon acceptors leading to an unintentional p-type doping. Magneto-optical studies of such a GaAs/AlAs core-multishell NW reveal quantum confined emission. Theoretical calculations of NW electronic structure confirm quantum confinement of carriers at the core/shell interface due to the presence of ionized carbon acceptors in the 1 nm GaAs layer in the shell. Microphotoluminescence in high magnetic field shows a clear signature of avoided crossings of the n = 0 Landau level emission line with the n = 2 Landau level TO phonon replica. The coupling is caused by the resonant hole-phonon interaction, which points to a large two-dimensional hole density in the structure.

show abstract

“…23,24 However, to our knowledge this type of experiment has not been reported previously for bulk semiconductors. In this paper detailed experimental studies of the magnetopolaron effect on silicon and oxygen donors in GaN are presented.…”

Section: Introductionmentioning

confidence: 75%

Magnetopolaron effect on shallow donors in GaN

et al. 2006

View full text Add to dashboard Cite

Resonant interaction between longitudinal-optic ͑LO͒ phonons and electrons bound on shallow donors in GaN is studied using magnetoluminescence of neutral-donor bound excitons ͑D 0 X͒. The experiments were performed on high-quality freestanding GaN material and heteroepitaxial GaN layers grown on sapphire. In addition to the principal recombination channel of D 0 X, in which donors are left in their ground states, two-electron satellites ͑TES͒ involving different excited donor excitations, as well as replicas of the principal D 0 X transition due to LO phonons, were observed for the oxygen and silicon donors. In order to separate transitions involving ground and excited D 0 X states, variable-temperature experiments were performed. The application of high magnetic fields allows tuning of the donor excitations into resonance with the LO phonon energy. This results in a strong enhancement of TES intensity and the appearance of several anticrossing processes in the vicinity of a LO phonon replica of the principal D 0 X transition. The observed behavior is explained in terms of a resonant interaction between LO phonons and donor-bound electrons ͑magnetopolaron effect͒. The experimental data are described using a phenomenological model that combines the theory of a hydrogen atom in a magnetic field with a model which includes the effects of nonparabolicity, nonresonant polaron corrections, and the resonant magnetopolaron effect on electrons bound to donors. It was found that the interaction in the resonant magnetopolaron regime is stronger for the oxygen than for the silicon donor.

show abstract

Direct observation of magnetoplasmon-phonon coupled modes in the magnetophotoluminescence spectra of the two-dimensional electron gas inInx
L. V. Butov
¹
,
V. I. Grinev
²
,
V. D. Kulakovskiĭ
³

et al.

Cited by 16 publications

References 16 publications

Many-body luminescence from highly excited quantum-confined structures

Many-body luminescence from highly excited quantum-confined structures

Unintentional High-Density p-Type Modulation Doping of a GaAs/AlAs Core–Multishell Nanowire

Magnetopolaron effect on shallow donors in GaN

Contact Info

Product

Resources

About

Direct observation of magnetoplasmon-phonon coupled modes in the magnetophotoluminescence spectra of the two-dimensional electron gas inInxL. V. Butov1, V. I. Grinev2, V. D. Kulakovskiĭ3 et al.

Cited by 16 publications

References 16 publications

Many-body luminescence from highly excited quantum-confined structures

Many-body luminescence from highly excited quantum-confined structures

Unintentional High-Density p-Type Modulation Doping of a GaAs/AlAs Core–Multishell Nanowire

Magnetopolaron effect on shallow donors in GaN

Contact Info

Product

Resources

About

Direct observation of magnetoplasmon-phonon coupled modes in the magnetophotoluminescence spectra of the two-dimensional electron gas inInx
L. V. Butov
¹
,
V. I. Grinev
²
,
V. D. Kulakovskiĭ
³

et al.