石墨烯量子霍尔相中的量化热流：探索拓扑秩序

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED

Modern Physics Letters B Pub Date : 2024-07-02 DOI:10.1142/S0217984924300035

Saurabh Kumar Srivastav, Anindya Das

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引用次数: 0

摘要

拓扑量子数通常用于描述当系统保持在有边界的空间中时，具有受保护的无间隙边缘模的相的拓扑顺序。这一类中的著名例子是量子化电霍尔电导和热霍尔电导，它们编码了整数和分数量子霍尔态的拓扑阶数。在此，我们回顾了最近在石墨烯基范德华异质结构中实现的整数和分数量子霍尔态的热传输研究。

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Quantized heat flow in graphene quantum Hall phases: Probing the topological order

Topological quantum numbers are often used to characterize the topological order of phase having protected gapless edge modes when the system is kept in a space with the boundary. The famous examples in this category are the quantized electrical Hall conductance and thermal Hall conductance, which encodes the topological order of integer and fractional quantum Hall states. Here, we review the recent thermal transport study of integer and fractional quantum Hall states realized in graphene-based van der Waals heterostructures.

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来源期刊

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.