Effects of carrier mass differences on the current-voltage characteristics of resonant tunneling structures

H. Ohno, E. E. Mendez, W. I. Wang

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

We show that the current-voltage characteristics of resonant tunneling structures are drastically influenced by the difference of electronic effective masses between the electrodes and the quantum well. In particular, if the mass in the well is larger than that in the emitter, the current peak is shifted to lower voltages, relative to the more conventional case of equal masses. This situation is illustrated experimentally with GaAs/AlAs/GaAs heterostructures, in which Γ electrons emitted from GaAs tunnel resonantly through the AlAs X point, where the mass is considerably heavier.

Original languageEnglish
Pages (from-to)1793-1795
Number of pages3
JournalApplied Physics Letters
Volume56
Issue number18
DOIs
Publication statusPublished - 1990 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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