Home > Research > Publications & Outputs > On resonant oscillations in current-voltage cha...
View graph of relations

On resonant oscillations in current-voltage characteristics of double-barrier heterostructures

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>03/1991
<mark>Journal</mark>Semiconductor Science and Technology
Issue number3
Number of pages5
Pages (from-to)196-200
Publication StatusPublished
<mark>Original language</mark>English


A non-quantum interference mechanism in the current-voltage characteristics of double-barrier semiconductor heterostructures is suggested. It is based on the admixing of independent contributions of channels corresponding to different values of the electron momentum along the plane of device. The disturbing of coherence of channels due to non-parabolicity of the conduction band and magnetic field parallel to the plane causes a modulation of amplitude of resonant oscillations (looking like beats) in devices with wide interbarrier space. In the simplest cases the amplitude of oscillations depends on the voltage drop V and magnetic field H as sin(V3/2)/V3/2 and J1(H)/H respectively. Our consideration gives an interpretation of the experiments in a parallel magnetic field.