检索结果-南通市图书馆

Deducing the internal interfaces of twisted multilayer graphene via moiré-regulated surface conductivity

National Science Review 2023年第8期10卷 194-202页

作者： Huan Wang Sen Wang Shuai Zhang Mengzhen Zhu Wengen Ouyang Qunyang Li Applied Mechanics Laboratory Department of Engineering Mechanics Tsinghua University 2. Department of Engineering Mechanics School of Civil EngineeringWuhan University 3. State Key Laboratory of Water Resources and Hydropower Engineering ScienceWuhan University State Key Laboratory of Tribology in Advanced Equipment Tsinghua University

The stacking state of atomic layers critically determines the physical properties of twisted van der Waals materials. Unfortunately, precise characterization of the stacked interfaces remains a great challenge as they are buried internally. With conductive atomic force microscopy, we show that the moiré superlattice structure formed at the embedded interfaces of small-angle twisted multilayer graphene(tMLG) can noticeably regulate surface conductivity even when the twisted interfaces are 10 atomic layers beneath the surface. Assisted by molecular dynamics(MD) simulations, a theoretical model is proposed to correlate surface conductivity with the sequential stacking state of the graphene layers of tMLG. The theoretical model is then employed to extract the complex structure of a tMLG sample with crystalline defects. Probing and visualizing the internal stacking structures of twisted layered materials is essential for understanding their unique physical properties, and our work offers a powerful tool for this via simple surface conductivity mapping.

关键词： twisted graphene electrical conductivity embedded interface atomic reconstruction moiré pattern

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Correlation,superconductivity and topology in graphene moirésuperlattice

引用

Frontiers of physics 2023年第4期18卷 199-207页

作者： Lingxiao Li Min Wu Xiaobo Lu International Centre for Quantum Materials Peking UniversityBeijing 100871China

Moirésuperlattices created by stacking different pieces of two-dimensional layered materials with a slight lattice mismatch have recently emerged as an exceptional platform for exploring emergent quantum phenomena.In stark contrast to the“parent”materials,the electronic band structures are significantly modified from moiréengineering due to the large-scale periodic moirépotential and interlayer hybridization.In this paper,we mainly focus on the recent progresses achieved in graphene-based moirésystems which have been a condensed-matter playground showing unprecedented abundance of quantum states such as strongly correlated states,superconductivity and novel band topologies.

关键词： twisted graphene moirésuperlattices correlation superconductivity topology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：