Изучены особенности резистивного переключения в экспериментальных образцах мемристоров на основе тонких пленок стабилизированного иттрием диоксида циркония треугольными импульсами, на которые накладывался высокочастотный синусоидальный сигнал. Обнаружено уменьшение значений напряжения переключения мемристора из низкоомного состояния в высокоомное и обратно, а также увеличение отношения значений силы тока через мемристор в указанных состояниях и долговременной стабильности тока при наложении синусоидального сигнала на переключающие импульсы по сравнению с переключениями треугольными импульсами без синусоидального сигнала. Улучшение характеристик резистивного переключения связано с резонансной активацией миграции ионов кислорода по вакансиям в переменном внешнем электрическом поле. Ключевые слова: мемристор, резистивное переключение, стабилизированный диоксид циркония, резонансная активация.
Abstract. In framework of the 2D - dissipative tunneling theory in approximation of a rarefied gas of the «instanton - antiinstanton pairs» at a finite temperature under the conditions of an external electric field, the features of tunneling transport for planar structures with quantum dots (QDs) from colloidal gold, that have metamaterial properties, have been studied. It was experimentally shown that, depending on the positioning of the cantilever needle of a combined atomic force and scanning tunneling microscope (AFM / STM), either above a single quantum dot or between two neighboring quantum dots, either a single or double effect of 2D tunneling bifurcations have been observed, respectively. It is such a double bifurcation regime, as our theoretical model has shown, that is associated with the manifestation of the metamaterial properties by the structure under study. A convincing qualitative agreement between the experimental I – V characteristics and the field dependence of the 2D - dissipative tunneling probability in the two studied modes, taking into account the observed quantum beats in the vicinity of the 2D bifurcation points, has been obtained.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.