Abstract
It is shown that under resonance tunneling conditions the energy structure of electric-field domains in doped superlattices is substantially different from a resonance structure. As the impurity concentration decreases, the domain walls become wider and the current hysteresis becomes narrower (collapses) as a result of the mismatch of the resonance levels in the region of a domain wall. A physical interpretation of the criterion for the existence of electric-field domains is given.
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Pis’ma Zh. Éksp. Teor. Fiz. 64, No. 3, 146–151 (10 August 1996)
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Mityagin, Y.A., Murzin, V.N. Current hysteresis collapse and the formation condition for electric-field domains in lightly doped superlattices. Jetp Lett. 64, 155–161 (1996). https://doi.org/10.1134/1.567167
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DOI: https://doi.org/10.1134/1.567167