Analysis of Nonlinear Distortions of Dphemt Structures Based on a GaAs/InGaAs Compound with Double-Sided Delta-Doping

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Abstract

The paper presents the results of studies of C–V characteristics of GaAs/In0.53Ga0.47As HEMT before and after neutron irradiation with a fluence of (6.3 ± 1.3) × 1014 cm2. Based on the experimentally obtained characteristics, the effective electron distribution profiles of the structure were calculated before and after radiation impact. The effect of radiation defects on the δ-layers of the structure was analyzed.

About the authors

O. L. Golikov

Lobachevsky State University of Nizhny Novgorod (NNSU)

Email: tarasova@rf.unn.ru
Russian Federation, Nizhny Novgorod

N. E. Kodochigov

Lobachevsky State University of Nizhny Novgorod (NNSU)

Email: tarasova@rf.unn.ru
Russian Federation, Nizhny Novgorod

S. V. Obolensky

Lobachevsky State University of Nizhny Novgorod (NNSU)

Email: tarasova@rf.unn.ru
Russian Federation, Nizhny Novgorod

A. S. Puzanov

Lobachevsky State University of Nizhny Novgorod (NNSU)

Email: tarasova@rf.unn.ru
Russian Federation, Nizhny Novgorod

E. A. Tarasova

Lobachevsky State University of Nizhny Novgorod (NNSU)

Author for correspondence.
Email: tarasova@rf.unn.ru
Russian Federation, Nizhny Novgorod

S. V. Khazanova

Lobachevsky State University of Nizhny Novgorod (NNSU)

Email: tarasova@rf.unn.ru
Russian Federation, Nizhny Novgorod

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Supplementary files

Supplementary Files
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1. JATS XML
2. Fig. 1. Flow-gate VFCs of the investigated GaAs/In0.53Ga0.47As structure: before irradiation; after neutron irradiation; ○ experimental data; ○ numerical calculation

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3. Fig. 2. Results of modeling of the drain-gate VFC of the GaAs/In0.53Ga0.47As structure under study for the temperature of 77 K: 1 - before irradiation; 2 - after neutron irradiation

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4. Fig. 3. Results of modeling of the zone diagram of the GaAs/In0.53Ga0.47As structure under study: 1 - before irradiation; 2 - after neutron irradiation

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5. Fig. 4. Effective concentration profile of the GaAs/In0.53Ga0.47As structure under study: 1 - before irradiation; 2 - after neutron irradiation

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