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“Cyclotron resonance of both magnetopolaron branches for polar and neutral optic phonon coupling in the layer compound InSe”. Nicholas RJ, Watts M, Howell DF, Peeters FM, Wu XG, Devreese JT, van Bockstal L, Herlach F, Langerak CJGM, Singleton J, Chevy A, Pysical review: B 45, 12144 (1992). http://doi.org/10.1103/PhysRevB.45.12144
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 21
DOI: 10.1103/PhysRevB.45.12144
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“Destruction of magnetophonon resonance in high magnetic fields from impurity and phonon scattering in heterojunctions”. Xu W, Peeters FM, Devreese JT, Leadley DR, Nicholas RJ, International journal of modern physics: B: condensed matter physics, statistical physics, applied physics 10, 169 (1996). http://doi.org/10.1142/S0217979296000076
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 0.937
Times cited: 11
DOI: 10.1142/S0217979296000076
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“Diffusion-to-streaming transition in a two-dimensional electron system in a polar semiconductor”. Xu W, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 43, 14134 (1991)
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 24
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“Disappearance of magnetophonon resonance at high magnetic fields in GaAs-GaAlAs heterojunctions”. Leadley DR, Nicholas RJ, Singleton J, Xu W, Peeters FM, Devreese JT, van Bockstal L, Herlach F, Perenboom JAAJ, Harris JJ, Foxon CT, Surface science : a journal devoted to the physics and chemistry of interfaces 305, 327 (1994). http://doi.org/10.1016/0039-6028(94)90910-5
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.925
Times cited: 1
DOI: 10.1016/0039-6028(94)90910-5
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“Dispersion of longitudinal plasmons for a quasi-two-dimensional electron gas”. Backes WH, Peeters FM, Brosens F, Devreese JT, Physical review : B : condensed matter and materials physics 45, 8437 (1992). http://doi.org/10.1103/PhysRevB.45.8437
Abstract: Confinement of electrons in ultrathin metallic films leads to subbands. By increasing the thickness of the electron layer, the subbands will dissolve into a quasicontinuum, with the number of electrons per unit volume kept constant. Within the random-phase approximation, the two-dimensional plasmon, which originally follows Stern's dispersion relation, becomes a longitudinal surface plasmon. The plasmon excitations of a model metallic film are investigated by including all subbands. Single-particle excitations, which exhibit the depolarization shift, converge into the plasma excitation spectrum. With further increases in the film thickness, the bulk plasmon arises and the surface plasmon remains. Our analysis shows how quantum size effects evolve into hydrodynamical classical size effects with increasing thickness of the film.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 37
DOI: 10.1103/PhysRevB.45.8437
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“Donor transition energy in GaAs-superlattices in a magnetic field along the growth axis”. Shi JM, Peeters FM, Hai GQ, Devreese JT, Physical review : B : condensed matter and materials physics 44, 5692 (1991)
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 78
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“DX-center and pressure effects on electronic structure of a δ-doped quantum barrier”. Shi JM, Koenraad PM, van de Stadt AFW, Peeters FM, Devreese JT, Wolter JH, Superlattices and microstructures 23, 83 (1998). http://doi.org/10.1006/spmi.1996.0327
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 2.123
DOI: 10.1006/spmi.1996.0327
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“Electron mobility in Si δ-doped GaAs with spatial correlations in the distribution of charged impurities”. Shi JM, Koenraad PM, van de Stadt AFW, Peeters FM, Farias GA, Devreese JT, Wolter JH, Wilamowski Z, Physical review : B : condensed matter and materials physics 55, 13093 (1997)
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.836
Times cited: 17
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“Electron mobility in Si delta doped GaAs”. Koenraad PM, van de Stadt AFW, Hai GQ, Shi JM, Vansant P, Peeters FM, Devreese JT, Perenboom JAAJ, Wolter JH, Physica: B : condensed matter 211, 462 (1995). http://doi.org/10.1016/0921-4526(94)01094-H
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.319
Times cited: 9
DOI: 10.1016/0921-4526(94)01094-H
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“Electron optical-phonon coupling in GaAs/AlxGa1-xAs quantum wells due to interface, slab and half-space modes”. Hai GQ, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 48, 4666 (1993). http://doi.org/10.1103/PhysRevB.48.4666
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 102
DOI: 10.1103/PhysRevB.48.4666
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“Electronic structure of a Si \delta-doped layer in a GaAs/AlxGa1-xAs/GaAs quantum barrier”. Shi JM, Koenraad PM, van de Stadt AFW, Peeters FM, Devreese JT, Wolter JH, Physical Review B 54, 7996 (1996). http://doi.org/10.1103/PhysRevB.54.7996
Abstract: We present a theoretical study of the electronic structure of a heavily Si delta-doped layer in a GaAs/AlxGa1-xAs/GaAs quantum barrier. In this class of structures the effect of DX centers on the electronic properties can be tuned by changing the AlxGa1-xAs barrier width and/or the Al concentration, which leads to a lowering of the DX level with respect to the Fermi energy without disturbing the wave functions much. A self-consistent approach is developed in which the effective confinement potential and the Fermi energy of the system, the energies, the wave functions, and the electron densities of the discrete subbands have been obtained as a function of both the material parameters of the samples and the experimental conditions. The effect of DX centers on such structures at nonzero temperature and under an external pressure is investigated for three different models: (1) the DX(nc)(0) model with no correlation effects, (2) the d(+)/DX(0) model, and (3) the d(+)/DX(-) model with inclusion of correlation effects. In the actual calculation, influences of the background accepters, the discontinuity of the effective mass of the electrons at the interfaces of the different materials, band nonparabolicity, and the exchange-correlation energy of the electrons have been taken into account. We have found that (1) introducing a quantum barrier into delta-doped GaAs makes it possible to control the energy gaps between different electronic; subbands; (2) the electron wave functions are mon spread out when the repellent effect of the barriers is increased as compared to those in delta-doped GaAs; (3) increasing the quantum-barrier height and/or the application of hydrostatic pressure are helpful to experimentally observe the effect of the DX centers through a decrease of the total free-electron density; and (4) the correlation effects of the charged impurities are important for the systems under study.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 11
DOI: 10.1103/PhysRevB.54.7996
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“Electrophonon resonances in a quasi-two-dimensional electron system”. Xu W, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 48, 1562 (1993). http://doi.org/10.1103/PhysRevB.48.1562
Abstract: When the energy difference between two electric subbands in a quasi-two-dimensional electron system equals a LO-phonon energy, resonant scattering will occur. This leads to an enhancement of the scattering rate and, consequently, to a suppression of the conductivity. Changing the energy difference between the electric subbands (e.g., through a gate) leads to a series of electrophonon resonances in the conductivity. A detailed study is made of this effect for different confinement potentials. We found that the scattering processes where the emission of a phonon is involved are very important for the electrophonon resonance and that the size of the effect decreases with increasing temperature.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 45
DOI: 10.1103/PhysRevB.48.1562
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“Equivalence of 3D bipolarons in a strong magnetic field to 1D bipolarons”. Smondyrev MA, Kochetov EA, Verbist G, Peeters FM, Devreese JT, Europhysics letters 19, 519 (1992). http://doi.org/10.1209/0295-5075/19/6/013
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 2.095
Times cited: 17
DOI: 10.1209/0295-5075/19/6/013
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“Exact equations for large bipolarons in the strong-coupling limit”. Smondyrev MA, Peeters FM, Vansant P, Devreese JT, Journal of physics: A: mathematical and general 27, 7925 (1994)
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Times cited: 17
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“Extended stability region for large bipolarons through interaction with multiple phonon branches”. Verbist G, Peeters FM, Devreese JT, Ferroelectrics 130, 27 (1992). http://doi.org/10.1080/00150199208019532
Abstract: The large (bi)polaron is investigated for the case where the electron interacts with multiple LO-phonon branches. Explicit expressions for the groundstate energy and the effective mass are obtained within the Feynman polaron model approximation and they are applied to the material SrTiO3. The results of an effective LO-phonon branch approximation are compared with the results in which all LO-phonon branches are explicitly included. We show how the stability region for large bipolaron formation is enlarged when the electrons interact with multiple LO-phonon branches. The possible relevance of this result for the high-T(c) superconductors is pointed out.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 0.469
Times cited: 19
DOI: 10.1080/00150199208019532
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“Far-infrared magneto-optical studies of the polaron effect in low dimensional GaAs-(Ga,Al)As structures”. Langerak CJGM, Singleton J, Perenboom JAA, Devreese JT, Barnes DJ, Nicholas RJ, Huant S, Harris JJ, Foxon CT, Etienne B, Peeters FM, Physica scripta T39, 308 (1991). http://doi.org/10.1088/0031-8949/1991/T39/047
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.126
Times cited: 6
DOI: 10.1088/0031-8949/1991/T39/047
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“High-field magneto-resistance in GaAs-GaAlAs heterojunctions”. Leadley DR, Nicholas RJ, Xu W, Peeters FM, Devreese JT, Foxon CT, Harris JJ, Physica: B : condensed matter 184, 197 (1993). http://doi.org/10.1016/0921-4526(93)90348-A
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.319
Times cited: 4
DOI: 10.1016/0921-4526(93)90348-A
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“High-field magnetoresistance in GaAs/Ga0.7Al0.3As heterojunctions arising from elastic and inelastic scattering”. Leadley DR, Nicholas RJ, Xu W, Peeters FM, Devreese JT, Singleton J, Perenboom JA, van Bockstal L, Herlach F, Foxon CT, Harris JJ, Physical review : B : condensed matter and materials physics 48, 5457 (1993). http://doi.org/10.1103/PhysRevB.48.5457
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 22
DOI: 10.1103/PhysRevB.48.5457
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“Hot magneto-phonon and electro-phonon resonances in heterostructures”. Peeters FM, Devreese JT, Semiconductor science and technology: B 7, 15 (1992). http://doi.org/10.1088/0268-1242/7/3B/004
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 2.19
Times cited: 12
DOI: 10.1088/0268-1242/7/3B/004
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“Interband magnetooptical studies of resonant polaron coupling in CdTe/Cd1-xMnxTe quantum-wells”. Nicholas RJ, Sasaki S, Miura N, Peeters FM, Shi JM, Hai GQ, Devreese JT, Lawless MJ, Ashenford DE, Lunn B, Physical Review B 50, 7596 (1994). http://doi.org/10.1103/PhysRevB.50.7596
Abstract: Magnetoreflectivity measurements of the 1s and 2s exciton energies in a CdTe/Cd1-xMnxTe superlattice have been made in magnetic fields up to 45 T, showing the resonant polaron coupling of electrons to LO phonons. Strong reflectivity features are seen for both the 1s and 2s excitons, which show a strong field-dependent spin splitting due to the dilute magnetic barriers. At B-z=0, the 2s exciton feature is observed lying 18 meV above the Is state, and is shifted upward in energy by the magnetic fields. No resonant behavior occurs when the 2s state passes through the LO-phonon energy of 21 meV, but at higher fields of around 20 T, the resonances for both spin states (sigma(+/-)) of the 2s exciton broaden and show a strong anticrossing behavior. These experiments are shown to be in excellent agreement with a theoretical treatment which includes the resonant polaron coupling of the electrons alone. Both experiment and theory demonstrate an extremely strong resonant splitting of the 2s exciton states of approximately 11 meV, which is over 50% of the LO-phonon energy. The dominance of single-particle polaron coupling is attributed to the relative sizes of the polaron (35 Angstrom A) and the exciton (50 Angstrom A) radius.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 10
DOI: 10.1103/PhysRevB.50.7596
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“Interface optical phonon mode coupling in GaAs/AlAs quantum wells at high magnetic fields”. Hai GQ, Peeters FM, Devreese JT, Physica: B : condensed matter 184, 289 (1993). http://doi.org/10.1016/0921-4526(93)90367-F
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.319
Times cited: 3
DOI: 10.1016/0921-4526(93)90367-F
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“Large bipolarons in three and two dimensions”. Verbist G, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 43, 2712 (1991)
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 155
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“Magneto-phonon resonances in the resistance and the optical absorption spectrum of heterostructures”. Peeters FM, Wu XG, Devreese JT, Physica scripta T39, 302 (1991). http://doi.org/10.1088/0031-8949/1991/T39/046
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.126
DOI: 10.1088/0031-8949/1991/T39/046
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“Magneto-polaron effect on shallow donors in bulk GaAs and on D0 and D- in GaAs/AlGaAs superlattices”. Shi JM, Peeters FM, Devreese JT, Physica: B : condensed matter 204, 344 (1995). http://doi.org/10.1016/0921-4526(94)00285-4
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.319
Times cited: 3
DOI: 10.1016/0921-4526(94)00285-4
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“Magneto-polaron effect on shallow indium donors in CdTe”. Grynberg M, Huant S, Martinez G, Kossut J, Wojtowicz T, Karczewski G, Shi JM, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 54, 1467 (1996). http://doi.org/10.1103/PhysRevB.54.1467
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 33
DOI: 10.1103/PhysRevB.54.1467
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“Magnetopolaron effect on shallow donor states in GaAs”. Shi JM, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 48, 5202 (1993). http://doi.org/10.1103/PhysRevB.48.5202
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 58
DOI: 10.1103/PhysRevB.48.5202
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“Magnetopolaron effect on shallow donors in bulk and in weakly and strongly coupled superlattices”. Peeters FM, Shi JM, Devreese JT, Physica scripta T55, 57 (1994). http://doi.org/10.1088/0031-8949/1994/T55/009
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.126
Times cited: 7
DOI: 10.1088/0031-8949/1994/T55/009
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“Magnetopolaron effect on shallow donors in GaAs”. Cheng J-P, McCombe BD, Shi JM, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 48, 7910 (1993)
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 46
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“Magnetopolaron effect on the donor transition energies in ZnSe”. Shi JM, Peeters FM, Devreese JT, Imanaka Y, Miura N, Physical review : B : condensed matter and materials physics 52, 17205 (1995). http://doi.org/10.1103/PhysRevB.52.17205
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 7
DOI: 10.1103/PhysRevB.52.17205
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“Modeling drive currents and leakage currents : a dynamic approach”. Magnus W, Brosens F, Sorée B, Journal of computational electronics 8, 307 (2009). http://doi.org/10.1007/s10825-009-0296-9
Abstract: The dynamics of electrons and holes propagating through the nano-scaled channels of modern semiconductor devices can be seen as a widespread manifestation of non-equilibrium statistical physics and its ruling principles. In this respect both the devices that are pushing conventional CMOS technology towards the final frontiers of Moores law and the upcoming set of alternative, novel nanostructures grounded on entirely new concepts and working principles, provide an almost unlimited playground for assessing physical models and numerical techniques emerging from classical and quantum mechanical non-equilibrium theory. In this paper we revisit the Boltzmann as well as the WignerBoltzmann equation which offers a valuable platform to study transport of charge carriers taking part in drive currents. We focus on a numerical procedure that regained attention recently as an alternative tool to solve the time-dependent Boltzmann equation for inhomogeneous systems, such as the channel regions of field-effect transistors, and we discuss its extension to the WignerBoltzmann equation. Furthermore, we pay attention to the calculation of tunneling leakage currents. The latter typically occurs in nano-scaled transistors when part of the carrier distribution sustaining the drive current is found to tunnel into the gate due the presence of an ultra-thin insulating barrier separating the gate from the channel region. In particular, we discuss the paradox related to the very existence of leakage currents established by electrons occupying quasi-bound states, while the (real) wave functions of the latter cannot carry net currents. Finally, we describe a simple model to resolve the paradox as well as to estimate gate currents provided the local carrier generation rates largely exceed the tunneling rates.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.526
Times cited: 4
DOI: 10.1007/s10825-009-0296-9
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