Room-temperature negative differential resistance in gate-tunable Weyl semimetal transistors

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2024-11-10 DOI:10.1016/j.rinp.2024.108039

Shih-Hung Cheng, Ting-I Kuo, Er-Feng Hsieh, Wen-Jeng Hsueh

引用次数: 0

Abstract

Negative differential resistance (NDR) has garnered substantial interest in propelling the progression of next-generation electronic devices. Weyl semimetals (WSMs) are a potential candidate for NDR devices; however, the NDR effect in WSMs has not been investigated. Here, we propose the gate-tunable transistor to theoretically develop the NDR effect in WSMs for the first time. The maximum peak-to-valley current ratio (PVR) of over 2 with a high current density peak at the NDR regime is observed with the help of the control gate and periodicity. Notably, it is demonstrated that the NDR effect can present stability for varying temperatures, even at room temperature, making the proposed device to be applied into practice. Finally, the NDR performances of the proposed devices are better than those of the present literature. Our findings highlight the potential of the NDR devices utilizing WSMs.

Abstract Image

查看原文本刊更多论文

栅极可调谐韦尔半金属晶体管中的室温负差分电阻

负微分电阻（NDR）在推动下一代电子器件发展方面引起了极大的兴趣。韦尔半金属（WSM）是负差分电阻器件的潜在候选器件；然而，WSM 中的负差分电阻效应尚未得到研究。在此，我们提出了栅极可调谐晶体管，首次从理论上开发了 WSM 中的 NDR 效应。在控制栅极和周期性的帮助下，我们观测到了超过 2 的最大峰谷电流比 (PVR)，以及 NDR 状态下的高电流密度峰值。值得注意的是，NDR 效应即使在室温下也能在不同温度下保持稳定，这使得所提出的器件可以应用到实际中。最后，所提出器件的 NDR 性能优于现有文献。我们的研究结果凸显了利用 WSM 的 NDR 器件的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

期刊介绍： Results in Physics is an open access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of physics, materials science, and applied physics. Papers of a theoretical, computational, and experimental nature are all welcome. Results in Physics accepts papers that are scientifically sound, technically correct and provide valuable new knowledge to the physics community. Topics such as three-dimensional flow and magnetohydrodynamics are not within the scope of Results in Physics. Results in Physics welcomes three types of papers: 1. Full research papers 2. Microarticles: very short papers, no longer than two pages. They may consist of a single, but well-described piece of information, such as: - Data and/or a plot plus a description - Description of a new method or instrumentation - Negative results - Concept or design study 3. Letters to the Editor: Letters discussing a recent article published in Results in Physics are welcome. These are objective, constructive, or educational critiques of papers published in Results in Physics. Accepted letters will be sent to the author of the original paper for a response. Each letter and response is published together. Letters should be received within 8 weeks of the article''s publication. They should not exceed 750 words of text and 10 references.