Effect of Transition Metal Dichalcogenide Based Confinement Layers on the Performance of Phase‐Change Heterostructure Memory

Author:

Kim Tae Ho1,Park Seung Woo1,Lee Ho Jin1,Kim Dong Hyun1,Choi Jun Young1,Kim Tae Geun1ORCID

Affiliation:

1. School of Electrical Engineering Korea University Seoul Seongbuk‐gu 02841 South Korea

Abstract

AbstractPhase‐change random‐access memory is a promising non‐volatile memory technology. However repeated phase‐change operations can cause durability issues owing to defects formed by long‐distance atom diffusion. To mitigate these issues, phase‐change heterostructure (PCH) devices with confinement material (CM) layers based on transition metal dichalcogenides (TMDs) such as TiTe2 have been proposed. This study implements PCH devices with additional TMDs, including NiTe2 and MoTe2, alongside TiTe2, and analyzes their characteristics by examining the differences in the CM layers. The results show that the NiTe2‐based PCH device demonstrates a RESET current of 1.4 mA, 38% lower than that of the TiTe2‐based device, enabling low‐power operation. Furthermore, the MoTe2‐based PCH device exhibits a cycling endurance exceeding 107 cycles, a five‐fold improvement in durability compare with the TiTe2‐based device. The performance differences observe in each PCH device can be attributed to the variation in the material properties, such as the cohesive energy and electrical conductivity, of the TMDs used as the CM layer. These results provide critical clues to improve the performance and reliability of conventional PCH memory devices.

Funder

National Research Foundation of Korea

Publisher

Wiley

Subject

Biomaterials,Biotechnology,General Materials Science,General Chemistry

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3