Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition

Abstract In this work, Ru-based RRAM devices with atomic layer deposited AlOy/HfOx functional layer were fabricated and studied. A negative differential resistance (NDR) behavior was observed during the voltage set process, and its physical origin was explored. Based on the physics understanding of...

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Main Authors: Yulin Feng, Peng Huang, Zheng Zhou, Xiangxiang Ding, Lifeng Liu, Xiaoyan Liu, Jinfeng Kang
Format: Article
Language:English
Published: SpringerOpen 2019-03-01
Series:Nanoscale Research Letters
Subjects:
Online Access:http://link.springer.com/article/10.1186/s11671-019-2885-2
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author Yulin Feng
Peng Huang
Zheng Zhou
Xiangxiang Ding
Lifeng Liu
Xiaoyan Liu
Jinfeng Kang
author_facet Yulin Feng
Peng Huang
Zheng Zhou
Xiangxiang Ding
Lifeng Liu
Xiaoyan Liu
Jinfeng Kang
author_sort Yulin Feng
collection DOAJ
description Abstract In this work, Ru-based RRAM devices with atomic layer deposited AlOy/HfOx functional layer were fabricated and studied. A negative differential resistance (NDR) behavior was observed during the voltage set process, and its physical origin was explored. Based on the physics understanding of the resistive switching, the measured NDR behavior is believed to be associated with the partially unipolar reset effect, which is due to the recombination between oxygen vacancies and the thermally released oxygen ions from the RuO2 interface layer. The measured electrical characteristics and X-ray photoelectron spectroscopy (XPS) results verified the physical interpretation.
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spelling doaj.art-9f77935ba312455ebe9e3c6366572c752023-08-02T00:43:21ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2019-03-011411510.1186/s11671-019-2885-2Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer DepositionYulin Feng0Peng Huang1Zheng Zhou2Xiangxiang Ding3Lifeng Liu4Xiaoyan Liu5Jinfeng Kang6Institute of Microelectronics, Peking UniversityInstitute of Microelectronics, Peking UniversityInstitute of Microelectronics, Peking UniversityInstitute of Microelectronics, Peking UniversityInstitute of Microelectronics, Peking UniversityInstitute of Microelectronics, Peking UniversityInstitute of Microelectronics, Peking UniversityAbstract In this work, Ru-based RRAM devices with atomic layer deposited AlOy/HfOx functional layer were fabricated and studied. A negative differential resistance (NDR) behavior was observed during the voltage set process, and its physical origin was explored. Based on the physics understanding of the resistive switching, the measured NDR behavior is believed to be associated with the partially unipolar reset effect, which is due to the recombination between oxygen vacancies and the thermally released oxygen ions from the RuO2 interface layer. The measured electrical characteristics and X-ray photoelectron spectroscopy (XPS) results verified the physical interpretation.http://link.springer.com/article/10.1186/s11671-019-2885-2Negative differential resistanceRutheniumRRAMAtomic layer deposition
spellingShingle Yulin Feng
Peng Huang
Zheng Zhou
Xiangxiang Ding
Lifeng Liu
Xiaoyan Liu
Jinfeng Kang
Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition
Nanoscale Research Letters
Negative differential resistance
Ruthenium
RRAM
Atomic layer deposition
title Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition
title_full Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition
title_fullStr Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition
title_full_unstemmed Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition
title_short Negative Differential Resistance Effect in Ru-Based RRAM Device Fabricated by Atomic Layer Deposition
title_sort negative differential resistance effect in ru based rram device fabricated by atomic layer deposition
topic Negative differential resistance
Ruthenium
RRAM
Atomic layer deposition
url http://link.springer.com/article/10.1186/s11671-019-2885-2
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AT penghuang negativedifferentialresistanceeffectinrubasedrramdevicefabricatedbyatomiclayerdeposition
AT zhengzhou negativedifferentialresistanceeffectinrubasedrramdevicefabricatedbyatomiclayerdeposition
AT xiangxiangding negativedifferentialresistanceeffectinrubasedrramdevicefabricatedbyatomiclayerdeposition
AT lifengliu negativedifferentialresistanceeffectinrubasedrramdevicefabricatedbyatomiclayerdeposition
AT xiaoyanliu negativedifferentialresistanceeffectinrubasedrramdevicefabricatedbyatomiclayerdeposition
AT jinfengkang negativedifferentialresistanceeffectinrubasedrramdevicefabricatedbyatomiclayerdeposition