Alex Harwit, M.B. Ritter, et al.
Applied Physics Letters
No abstract available.
Alex Harwit, M.B. Ritter, et al.
Applied Physics Letters
Y. Guldner, J.P. Vieren, et al.
Physical Review Letters
L. Esaki, L.L. Chang, et al.
Japanese Journal of Applied Physics
H.C. Casey Jr., M.B. Panish, et al.
Physical Review