NDLI: Magnetoexcitons in nanostructures exhibiting cylindrical symmetry

Content Provider	Springer Nature Link
Author	Schillak, P.
Copyright Year	2011
Abstract	The problem of an exciton in the cylindrical nanostructure exposed to an external static magnetic field is investigated. The theoretical model assumes anisotropic masses which are different inside and outside the nanostructure. The confinement potential has finite value at the boundaries and magnetic field is parallel to the axis of the cylinder. The screened Coulomb interaction between an electron and a hole is assumed. The consistent mathematical procedure is developed to calculate the magnetoexciton eigenfunctions and eigenenergies. Our method applies to the systems exhibiting cylindrical symmetry where, due to confinement effects accompanied by the e-h Coulomb interaction, the separation of relative- and center-of-mass motion is not possible. Numerical calculations have been performed for the quantum disk, the cylinder and the quantum rod. The magnetic field dependent energy spectrum and corresponding wave functions, expressed in terms of known one-particle electron and hole eigenfunctions, are calculated. Additionally, we point out the different role of Coulomb interaction in every case.
Starting Page	17
Ending Page	24
Page Count	8
File Format	PDF
ISSN	14346028
Journal	The European Physical Journal B
Volume Number	84
Issue Number	1
e-ISSN	14346036
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-10-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Statistical Physics, Dynamical Systems and Complexity Physics Condensed Matter Physics Solid State Physics Fluid- and Aerodynamics
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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