The diamagnetic susceptibility of hydrogenic donor in two-dimensional semiconductors with anisotropic effective mass of carriers
Küçük Resim Yok
Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Academic Press Ltd- Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the effects of quantum confinement and effective mass anisotropy parameter on the diamagnetic susceptibility of a hydrogenic donor placed in GaAs. Si, and Ge quantum wells with infinite confinement potential are investigated in the effective mass and parabolic band approximations by using two and one parameter trial wave functions. It is observed that the diamagnetic susceptibility of a hydrogenic donor in anisotropic quantum wells is essentially equal to the transverse diamagnetic susceptibility part when well widths are larger than L > 100 angstrom, and the impurity is located at center. Moreover, a two parameter trial wave function model gives higher values of diamagnetic susceptibility, except for chi(z) (GaAs). (C) 2011 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Quantum Well, Donor, Diamagnetic Susceptibility, Anisotropic Effective Mass, Impurity States, Binding-Energies, Electric-Field, Quantum-Dot, Polarization
Kaynak
Superlattices And Microstructures
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
51
Sayı
4
