Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - On resonant oscillations in current-voltage characteristics of double-barrier heterostructures
AU - Falko, Vladimir
AU - Meshkov, S. V.
PY - 1991/3
Y1 - 1991/3
N2 - 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.
AB - 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.
U2 - 10.1088/0268-1242/6/3/010
DO - 10.1088/0268-1242/6/3/010
M3 - Journal article
VL - 6
SP - 196
EP - 200
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
SN - 0268-1242
IS - 3
ER -