M.R. Freeman, D.D. Awschalom, et al.
Surface Science
We have made the first capacitance measurements of the density of states of quasi one-dimensional electronic systems. We observe oscillations reflecting the discrete energy levels of doubly confined electrons squeezed beneath submicron lines (0.2, 0.3, and 0.4 m wide) patterned on the surface of GaAs-AlxGa1-xAs heterojunction capacitors. The spacings of the oscillations and their dependence on potential well width can be explained theoretically by quantum size effects and the quasi one-dimensional nature of our samples. © 1987 The American Physical Society.
M.R. Freeman, D.D. Awschalom, et al.
Surface Science
Alex Harwit, M.B. Ritter, et al.
Applied Physics Letters
J.M. Hong, T.P. Smith III, et al.
Journal of Crystal Growth
D.D. Awschalom, J.M. Hong, et al.
Surface Science