Self-consistent calculation of tunneling current in w-GaN/AlGaN(0001) two-barrier heterostructures; Semiconductors; Vol. 40, iss. 6
| Parent link: | Semiconductors: Scientific Journal Vol. 40, iss. 6.— 2006.— [P. 675-680] |
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| Autor Principal: | |
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| Summary: | Title screen The specific features of the tunneling current in wurtzite GaN/AlGaN(0001) two-barrier structures are studied by solving the Schrodinger equation and the Poisson equation simultaneously, with regard to spontaneous and piezoelectric polarizations. It is shown that the internal fields manifest themselves in the asymmetry of the tunneling current via the value of the electronic charge in the quantum well. This charge is larger when the internal and external fields in the well compensate each other, resulting in smaller shifts of potential and resonance levels in the active region with voltage, in the higher resistance of the structure, and in the linear current-voltage dependence within a wide range of voltages. When the internal and external fields are the same, the current exhibits a sharp negative-differential-conductivity structure, with the peak-to-valley ratio equal to about four. The structure is similar to one of the branches of the current-voltage characteristic of the GaAs/AlGaAs(001) two-barrier structure, suggesting that nitrides are promising materials for resonance-tunneling devices. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglés |
| Publicado: |
2006
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| Series: | Low-Dimensional Systems |
| Subjects: | |
| Acceso en liña: | http://dx.doi.org/10.1134/S1063782606060121 |
| Formato: | Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648238 |
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| 200 | 1 | |a Self-consistent calculation of tunneling current in w-GaN/AlGaN(0001) two-barrier heterostructures |d Самосогласованный расчет туннельного тока в двухбарьерных гетероструктурах w-GaN/AlGaN (0001) |f S. N. Grinyaev, A. N. Razzhuvalov | |
| 203 | |a Text |c electronic | ||
| 225 | 1 | |a Low-Dimensional Systems | |
| 300 | |a Title screen | ||
| 320 | |a [References: 10 tit.] | ||
| 330 | |a The specific features of the tunneling current in wurtzite GaN/AlGaN(0001) two-barrier structures are studied by solving the Schrodinger equation and the Poisson equation simultaneously, with regard to spontaneous and piezoelectric polarizations. It is shown that the internal fields manifest themselves in the asymmetry of the tunneling current via the value of the electronic charge in the quantum well. This charge is larger when the internal and external fields in the well compensate each other, resulting in smaller shifts of potential and resonance levels in the active region with voltage, in the higher resistance of the structure, and in the linear current-voltage dependence within a wide range of voltages. When the internal and external fields are the same, the current exhibits a sharp negative-differential-conductivity structure, with the peak-to-valley ratio equal to about four. The structure is similar to one of the branches of the current-voltage characteristic of the GaAs/AlGaAs(001) two-barrier structure, suggesting that nitrides are promising materials for resonance-tunneling devices. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Semiconductors |o Scientific Journal | ||
| 463 | |t Vol. 40, iss. 6 |v [P. 675-680] |d 2006 | ||
| 510 | 1 | |a Самосогласованный расчет туннельного тока в двухбарьерных гетероструктурах w-GaN/AlGaN (0001) |z rus | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 700 | 1 | |a Grinyaev |b S. N. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical science |f 1951- |g Sergey Nikolaevich |3 (RuTPU)RU\TPU\pers\32574 |9 16495 | |
| 701 | 1 | |a Razzhuvalov |b A. N. |c physicist |c associate Professor of Tomsk Polytechnic University, candidate of physico-mathematical Sciences |f 1976- |g Alexander Nikolaevich |3 (RuTPU)RU\TPU\pers\36680 |9 19719 | |
| 801 | 2 | |a RU |b 63413507 |c 20160513 |g RCR | |
| 856 | 4 | |u http://dx.doi.org/10.1134/S1063782606060121 | |
| 942 | |c CF | ||