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A comparative analysis of the observed effects of 2D tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional Au-QD systems in an external electric field
| Категория: | физико-математические науки | |
| Авторы (ПГУ): | Кревчик Владимир Дмитриевич [50]  , Семенов Михаил Борисович [50] , Зайцев Роман Владимирович [0] | |
| Аннотация: | The effects of 2D tunneling bifurcations for quasi-one-dimensional and quasi-two-dimensional Au-quantum dot (QD) arrays in thin dielectric films in an external electric field have been studied theoretically and experimentally by Conductive Atomic Force Microscopy (CAFM). In the case of quasi-one-dimensional Au-QD structures (with the QD size similar to 5 nm), in a dielectric film, a single break under positive bias polarity, corresponding to the effect of 2D tunneling bifurcation, previously predicted theoretically by our team [1], has been detected in experimental I-V curves of the CAFM probe-to-sample contact. A convincing qualitative agreement between the obtained experimental I-V curves and the theoretical field dependence for the 2D-dissipative tunneling probability in the model 2D-oscillator potential has been obtained for the case of parallel tunneling in the weak-dissipation limit at a finite temperature in an external electric field. In the case of quasi-two-dimensional structures with Au-QD (with the QD sizes of 2 to 5 nm), possessing metamaterial properties, a pair of kinks corresponding to the double effect of 2D-tunneling bifurcations has been detected on the experimental I-V curves. A qualitative agreement between the experimental I-V curves and the theoretical field dependence for the 2D-dissipative tunneling probability has been obtained for a situation with an effectively "negative" permittivity of the heat bath. | |
| Тип: | Статья | |
| Вид: | электронная копия бумажного издания | |
| Количество частей: | 1 | |
| Год издания: | 2018 | |
| Издательство: | Университет ИТМО | |
| Где опубликовано: | Журнал | |
| Целевая аудитория: | Исследователь | |
| Целевое назначение: | Научное | |
| Лицензия: | Нет ограничений | |
| Ограничения: | Нет ограничений | |
| Правообладатель: | Университет ИТМО | |
| ISSN: | 2220-8054 | |
| DOI: | 10.17586/2220-8054-2018-9-6-724-734 | |
| Страницы (с ... по ...): | 724-734 | |
| Том: | 9(6) | |
| Внешняя веб-ссылка: | https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=F13ftwMSGrIaZI4bjMv&page=1&doc=1&cacheurlFromRightClick=no | |
| Язык: | Английский | |
| Место хранения: | Вне ПГУ | |
| Дата размещения: | 23.10.2019 | |
| Владелец: | Семенов Михаил Борисович | |
| Ссылка на ресурс: | http://elib.pnzgu.ru/library/1571830329  | |
| Формат: | Не указан |