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Transverse Stark effect in a rectangular semiconducting quantum wire
Author(s) -
Yi Guangyu,
Wei Guozhu,
Wu Haina
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200743045
Subject(s) - stark effect , quantum confined stark effect , electric field , condensed matter physics , physics , transverse plane , quantum wire , quantum electrodynamics , electron , polarization (electrochemistry) , polarization density , quantum mechanics , magnetic field , chemistry , magnetization , structural engineering , engineering
The transverse Stark effect in a rectangular quantum wire is investigated in the presence of an electric field by means of the variational calculation method and effective‐mass approximation. We obtain the asymptotic expansions of the Stark shift for low electric fields and for strong electric fields respectively, and find that the Stark shift is a quadratic function of the electric field for low electric fields and is an approximate linear function of the electric field for strong electric fields. The Stark shift and the polarization effect of electron and hole are influenced intensively by the cross‐sectional shape of quantum wires and direction of the electric field. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)