Self polarization in GaAs-(Ga, Al)As quantum well wires: electric field and geometrical effects
Küçük Resim Yok
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The response of an electron to an external electric field in different shapes of infinite quantum well wires has been investigated. The self-polarization effect which can be defined as the influence of the barrier potential on the impurity electron is studied for the quantum well wire of square, rectangular and cylindrical cross-sections. An external electric field vanishes due to the self-polarization effect has been calculated. It is shown that the self-polarization effect outside of the center depends on both the geometrical form of the wire and the impurity position in the same structure. (C) 2004 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Shallow Donors, Quantum Well Wires, Electric Field, Self Polarization, Hydrogenic Impurity States, Anomalous Polarization, Binding-Energy, Shallow Donors, Cross-Section, Polarizability
Kaynak
Physica E-Low-Dimensional Systems & Nanostructures
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
25
Sayı
4
