Electric field effect on the binding energy of a non-hydrogenic donor impurity in a square quantum well wire
Küçük Resim Yok
Tarih
2005
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Natl Inst Optoelectronics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We have used a variational technique to calculate the effect of an electric field on the non-hydrogenic binding energy of a donor impurity in a square GaAs/Ga1-x AlxAs quantum well wire (QWW). The non-hydrogenic binding energy of the donor impurity was calculated by the variational method as a function of applied electric field, the wire radius and donor impurity position. The results show that the non-hydrogenic binding energy of donar impurity located around the centre is larger than that of the hydrogenic binding energy. In this work, the variational method employed is capable of giving all the correct trends for impurity binding energies as a function of applied electric field, impurity position and screening effect.
Açıklama
2nd International Workshop on Amorphous and Nanostructured Chalcogenides -- JUN 20-24, 2005 -- Sinaia, ROMANIA
Anahtar Kelimeler
Shallow Donors, Square Quantum Well Wires, Electrical Field, Hydrogenic Impurity, Shallow-Donor, States, Polarizability, Polarization, Dependence
Kaynak
Journal Of Optoelectronics And Advanced Materials
WoS Q Değeri
Q2
Scopus Q Değeri
Q4
Cilt
7
Sayı
4
