J.H. Stathis, R. Bolam, et al.
INFOS 2005
Based on first-principles pseudopotential calculations, we analyze the energetics and the evolution of band energies as a function of Ge-Ge interlayer spacings for the (Si)4/(Ge)4 superlattice pseudomorphic to Si(001). It is demonstrated that the recently proposed occurrence of stretched bulklike Ge-Ge bonds is energetically unfavorable, and yields transition energies in disagreement with electroreflectance and photocurrent data. © 1990 The American Physical Society.
J.H. Stathis, R. Bolam, et al.
INFOS 2005
P.C. Pattnaik, D.M. Newns
Physical Review B
I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
R. Ghez, J.S. Lew
Journal of Crystal Growth