Energy levels of single and coupled quantum wells embedded in cylindrical buffer barriers affected by an axial magnetic field

Energy levels of an electron in single and coupled quantum wells embedded in cylindrical buffer barriers are studied under the influence of an axial magnetic field. An iteration algorithm which matches the boundary conditions of the wave function across interfaces is developed. It is shown that ener...

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Veröffentlicht in:Journal of applied physics 1994-08, Vol.76 (4), p.2547-2549
Hauptverfasser: Ping, Er-Xuan, Dalal, Vikram
Format: Artikel
Sprache:eng
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Zusammenfassung:Energy levels of an electron in single and coupled quantum wells embedded in cylindrical buffer barriers are studied under the influence of an axial magnetic field. An iteration algorithm which matches the boundary conditions of the wave function across interfaces is developed. It is shown that energy levels are tuned continuously as a function of the magnetic field strength. The degeneracy of energy levels occurring in planar coupled quantum wells for large barrier thickness is completely lifted due to the break of the symmetry in the cylindrical coupled quantum wells. Potential applications for tunable semiconductor lasers are proposed.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.357570