SPATIALLY DEPENDENT SCREENING CALCULATION OF BINDING-ENERGIES OF HYDROGENIC IMPURITY STATES IN GAAS-(GA,AL)AS QUANTUM-WELL WIRES

Authors
PORRASMONTENEGRO N
Citation
N. Porrasmontenegro, SPATIALLY DEPENDENT SCREENING CALCULATION OF BINDING-ENERGIES OF HYDROGENIC IMPURITY STATES IN GAAS-(GA,AL)AS QUANTUM-WELL WIRES, Journal of physics. Condensed matter, 5, 1993, pp. 367-368
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
5
Year of publication
1993
Supplement
33A
Pages
367 - 368
Database
ISI
SICI code
0953-8984(1993)5:<367:SDSCOB>2.0.ZU;2-H
Abstract
Using a variational procedure within the effective-mass approximation, we found that spatially dependent screening increases the binding ene rgies of shallow hydrogenic impurity states in GaAs-(Ga,A1)As quantum- well wires. These energies are higher than those found when constant s creening is used.