NEGATIVE DIFFERENTIAL RESISTANCE OF In0.53Ga0.47As/In0.52Al0.48As RESONANT TUNNELING BARRIERS GROWN BY MBE S. MUTO, T. INATA, Y, SUGIYAMA, Y. NAKATA, T. FUJII et S. HIYAMIZU J. Phys. Colloques, 48 C5 (1987) C5-453-C5-456 DOI: 10.1051/jphyscol:1987595