[C-4-2LN] Negative Differential Resistance in CHIRP Superlattice Diodes T. Nakagawa, H. Imamoto, T. Kojima, T. Sakamoto, N. J. Kawai, H. Ohta (1.Electrotechnical Lab.) https://doi.org/10.7567/SSDM.1985.C-4-2LN