EFFECTS OF LOCALIZED PHONON MODES ON MAGNETOTUNNELING SPECTRA IN DOUBLE-BARRIER STRUCTURES

被引：13

作者：

TURLEY, PJ

TEITSWORTH, SW

机构：

[1] Department of Physics, Duke University, Durham

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.44.12959

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of localized phonon modes on the low-temperature current-voltage curves of GaAs/AlAs double-barrier resonant-tunneling structures have been calculated in the presence of large magnetic fields parallel to the applied electric field. The applied magnetic field sharpens and increases the height of the phonon-assisted-tunneling peaks in agreement with experimental data. Computed magnetotunneling spectra reveal systematic deviations from a simple fan structure-also observed experimentally-which are attributed here to oscillations of the emitter Fermi level with the magnetic field.

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页码：12959 / 12963

页数：5

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