𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Binding energy of hydrogenic impurities in quantum well wires of InSb/GaAs

✍ Scribed by B.Zh. Poghosyan; G.H. Demirjian

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
115 KB
Volume
338
Category
Article
ISSN
0921-4526

No coin nor oath required. For personal study only.

✦ Synopsis

The binding energy of a hydrogen-like impurity in a thin size-quantized wire of the InSb/GaAs semiconductors with Kane's dispersion law has been calculated as a function of the radius of the wire and the location of the impurity with respect to the axis of the wire, using a variational approach. It is shown that when the wire radius is less than the Bohr radius of the impurity, the nonparabolisity of dispersion law of charge carriers leads to a considerable increase of the binding energy.

πŸ“œ SIMILAR VOLUMES

The Binding Energies of Shallow Donor Im
The Binding Energies of Shallow Donor Impurities in GaAs–(Ga,Al)As Coaxial Quantum-Well Wires
✍ I.D. Mikhailov; R. Escorcia; J. Sierra-Ortega πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 83 KB πŸ‘ 3 views

Within the effective-mass approximation a simple method to calculate the spectra of a shallowdonor impurity in GaAsΒ±(Ga, Al)As cylindrical quantum-well wires (QWWs) suitable for any confinement potential shape in radial direction is proposed. A trial function is taken as the product of a hydrogenic

Magnetic-field effect on the diamagnetic
Magnetic-field effect on the diamagnetic susceptibility of hydrogenic impurities in quantum well-wires
✍ M. Koksal; E. Kilicarslan; H. Sari; I. Sokmen πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 236 KB

We have studied the magnetic field effects on the diamagnetic susceptibility and binding energy of a hydrogenic impurity in a quantum well-wire by taking into account spatially dependent screening. Using the effective-mass approximation within a variational scheme, binding energy and diamagnetic sus