M.J. Graf, T.P. Smith III, et al.
Physical Review B
No abstract available.
M.J. Graf, T.P. Smith III, et al.
Physical Review B
C.Y. Fong, R.F. Gallup, et al.
Superlattices and Microstructures
L. Esaki, L.L. Chang
Thin Solid Films
L. Esaki, L.L. Chang
Physical Review Letters