activity
20132023
most citedTopological Phases in Two-Dimensional Materials: A Brief Review

514 citations · 2.6k across the 56 of their papers we have counts for

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Showing 2022Show all

10 papers · 1 filter

cond-mat.mtrl-sci2022

Tailoring interfacial nanostructures at graphene/transition metal dichalcogenide heterostructures

Ya-Ning Ren, Mo-Han Zhang, Qi Zheng +1

Integration of two-dimensional (2D) van der Waals (vdWs) materials with non-2D materials to realize mixed-dimensional heterostructures has potential for creating functional devices…

cond-mat.mes-hall2022

Experimental evidence for electron-electron interaction and spin-charge separation in graphene quantum dots

Hui-Ying Ren, Ya-Ning Ren, Qi Zheng +2

Graphene quantum dots (GQDs) can exhibit a range of spectacular phenomena such as the Klein-tunneling-induced quasibound states1-6 and Berry-phase-tuned energy spectra7-15. Accordi…

cond-mat.mes-hall2022★ 24 cited

Mixed-dimensional moiré systems of graphitic thin films with a twisted interface

Dacen Waters, Ellis Thompson, Esmeralda Arreguin-Martinez +7

Moiré patterns formed by stacking atomically-thin van der Waals crystals with a relative twist angle can give rise to dramatic new physical properties. The study of moiré materials…

cond-mat.mes-hall2022★ 17 cited

Coexistence of Reconstructed and Unreconstructed Structures in Structural Transition Regime of Twisted Bilayer Graphene

Xiao-Feng Zhou, Yi-Wen Liu, Chen-Yue Hao +7

In twisted bilayer graphene (TBG), a twist-angle-dependent competition between interlayer stacking energy and intralayer elastic energy results in flat rigid layers at large twist…

cond-mat.mtrl-sci2022

Stabilizing sample-wide Kekulé orders in graphene/transition metal dichalcogenide heterostructures

Mo-Han Zhang, Ya-Ning Ren, Qi Zheng +2

Kekulé phases are Peierls-like lattice distortions in graphene that are predicted to host novel electronic states beyond graphene (1-8). Although the Kekulé phases are realized in…

cond-mat.mes-hall2022★ 25 cited

Molecular Collapse States in Elliptical Graphene/WSe2 Heterostructure Quantum Dots

Qi Zheng, Yu-Chen Zhuang, Ya-Ning Ren +3

In relativistic physics, both atomic collapse in heavy nucleus and Hawking radiation in black hole are predicted to occur through Klein tunneling process that couples particles and…

cond-mat.mes-hall2022★ 13 cited

Gate-tunable anomalous Hall effect in a 3D topological insulator/2D magnet van der Waals heterostructure

Vishakha Gupta, Rakshit Jain, Yafei Ren +8

We demonstrate advantages of samples made by mechanical stacking of exfoliated van der Waals materials for controlling the topological surface state of a 3-dimensional topological…

cond-mat.mes-hall2022★ 12 cited

Topological Corner States in Graphene by Bulk and Edge Engineering

Junjie Zeng, Chen Chen, Yafei Ren +3

Two-dimensional higher-order topology is usually studied in (nearly) particle-hole symmetric models, so that an edge gap can be opened within the bulk one. But more often deviates…

cond-mat.mes-hall2022★ 25 cited

Magnetic field-tunable valley-contrasting pseudomagnetic confinement in graphene

Ya-Ning Ren, Yu-Chen Zhuang, Qing-Feng Sun +1

Introducing quantum confinement has uncovered a rich set of interesting quantum phenomena and allows one to directly probe the physics of confined (quasi-)particles. In most experi…

cond-mat.mes-hall2022★ 17 cited

Second-Order Topological Insulator in van der Waals Heterostructures of CoBr/PtHgSe/CoBr

Zheng Liu, Yafei Ren, Yulei Han +2

Second-order topological insulator, which has (d-2)-dimensional topological hinge or corner states, has been observed in three-dimensional materials, but has yet not been observed…