Interference phenomena due to intervalley mixing effects in the multivalley double-barrier structures

Jih-Chen Chiang and Wang-Chuang Kuo
Phys. Rev. B 48, 8040 – Published 15 September 1993
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Abstract

The transmission spectra of the multivalley double-barrier structures for various quantum-well widths are investigated within an antibonding-orbital model. We found some interesting interference phenomena due to the intervalley mixing effect: For each quantum-well width, the transmission spectrum exhibits a pair of closely spaced resonance peaks; the energy separation between the two resonance peaks and the ratio of the two resonance widths are oscillatory functions of the quantum-well width; and the energy separation between the two resonance peaks may be changed significantly by applying a voltage difference across the double-barrier structure when the energy separation at zero bias is small. We also demonstrated that these interference phenomena can be observed by analyzing the current-voltage characteristics of the multivalley double-barrier structures.

  • Received 21 May 1993

DOI:https://doi.org/10.1103/PhysRevB.48.8040

©1993 American Physical Society

Authors & Affiliations

Jih-Chen Chiang and Wang-Chuang Kuo

  • Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, Republic of China

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Issue

Vol. 48, Iss. 11 — 15 September 1993

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