当前位置:
X-MOL 学术
›
Phys. Rev. Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Giant Transport Anisotropy inReS2Revealed via Nanoscale Conducting-Path Control
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-09-24 , DOI: 10.1103/physrevlett.127.136803 Dawei Li 1 , Shuo Sun 1 , Zhiyong Xiao 1 , Jingfeng Song 1 , Ding-Fu Shao 1 , Evgeny Y Tsymbal 1 , Stephen Ducharme 1 , Xia Hong 1
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-09-24 , DOI: 10.1103/physrevlett.127.136803 Dawei Li 1 , Shuo Sun 1 , Zhiyong Xiao 1 , Jingfeng Song 1 , Ding-Fu Shao 1 , Evgeny Y Tsymbal 1 , Stephen Ducharme 1 , Xia Hong 1
Affiliation
The low in-plane symmetry in layered 1T’- results in strong band anisotropy, while its manifestation in the electronic properties is challenging to resolve due to the lack of effective approaches for controlling the local current path. In this work, we reveal the giant transport anisotropy in monolayer to four-layer by creating directional conducting paths via nanoscale ferroelectric control. By reversing the polarization of a ferroelectric polymer top layer, we induce a conductivity switching ratio of in the channel at 300 K. Characterizing the domain-defined conducting nanowires in an insulating background shows that the conductivity ratio between the directions along and perpendicular to the Re chain can exceed in monolayer . Theoretical modeling points to the band origin of the transport anomaly and further reveals the emergence of a flat band in few-layer . Our work paves the path for implementing highly anisotropic 2D materials for designing novel collective phenomena and electron lensing applications.
中文翻译:
通过纳米级传导路径控制揭示 ReS2 中的巨大输运各向异性
分层 1T' 中的低平面对称性导致强能带各向异性,而由于缺乏控制局部电流路径的有效方法,其在电子特性中的表现很难解决。在这项工作中,我们揭示了单层到四层的巨大输运各向异性通过纳米级铁电控制创建定向传导路径。通过反转铁电聚合物顶层的极化,我们诱导了电导率转换比为 在里面 通道在 300 K。 在绝缘背景中表征域定义的导电纳米线表明,沿着和垂直于 Re 链的方向之间的电导率比可以超过 在单层 . 理论模型指出了传输异常的带起源,并进一步揭示了在少层中出现平坦带. 我们的工作为实现高度各向异性的 2D 材料以设计新颖的集体现象和电子透镜应用铺平了道路。
更新日期:2021-09-24
中文翻译:
通过纳米级传导路径控制揭示 ReS2 中的巨大输运各向异性
分层 1T' 中的低平面对称性导致强能带各向异性,而由于缺乏控制局部电流路径的有效方法,其在电子特性中的表现很难解决。在这项工作中,我们揭示了单层到四层的巨大输运各向异性通过纳米级铁电控制创建定向传导路径。通过反转铁电聚合物顶层的极化,我们诱导了电导率转换比为 在里面 通道在 300 K。 在绝缘背景中表征域定义的导电纳米线表明,沿着和垂直于 Re 链的方向之间的电导率比可以超过 在单层 . 理论模型指出了传输异常的带起源,并进一步揭示了在少层中出现平坦带. 我们的工作为实现高度各向异性的 2D 材料以设计新颖的集体现象和电子透镜应用铺平了道路。