Resonant effect of Zener tunneling current

M. Morifuji, T. Imai, C. Hamaguchi, A. Di Carlo, P. Vogl, G. Böhm, G. Tränkle, G. Weimann

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Abstract

We report the observation of a resonant effect of the Zener current through a p-i-n diode structure. The second derivative of the I-V characteristics, measured with a lock-in technique, shows several pronounced peaks. These peaks indicate that quasilocalized states in a quantum well in the intrinsic region are in resonance with Zener current. A calculation of the tunneling current based on tight-binding theory shows good agreement with our experimental results. The same holds for the calculated energetic positions of the localized electronic states. Altogether, these results indicate that the Zener current gets modulated due to Wannier-Stark resonances.

Original languageEnglish
Article number233308
Pages (from-to)2333081-2333084
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number23
DOIs
StatePublished - 15 Jun 2002

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