8.4k citations · 19.8k across the 49 of their papers we have counts for
49 papers
Probing the Penetration Depth of Topological Surface States by Magnetic Impurity Scattering in V-doped SbTe
Yidi Wang, Zeyu Ma, Pengcheng Chen +11
Topological insulators host Dirac surface states (SS) protected by time-reversal symmetry. Inter-surface hybridization can gap the SS and give rise to the quantum spin Hall effect…
Probing charge order of monolayer NbSe within a bulk crystal
Doron Azoury, Edoardo Baldini, Aravind Devarakonda +6
Atomically thin transition metal dichalcogenides can exhibit markedly different electronic properties compared to their bulk counterparts. In the case of NbSe, the question of…
Photoinduced dynamics of flat bands in the kagome metal CoSn
Denny Puntel, Wibke Bronsch, Manuel Tuniz +8
CoSn is a prototypical kagome compound showing lattice-born flat bands with suppressed bandwidth over large parts of the Brillouin zone. Here, by means of time- and angle-resolved…
Small Fermi pockets intertwined with charge stripes and pair density wave order in a kagome superconductor
Hong Li, Dongjin Oh, Mingu Kang +13
The kagome superconductor family AV3Sb5 (A=Cs, K, Rb) emerged as an exciting platform to study exotic Fermi surface instabilities. Here we use spectroscopic-imaging scanning tunnel…
Crystal Net Catalog of Model Flat Band Materials
Paul M. Neves, Joshua P. Wakefield, Shiang Fang +3
Flat band systems are currently under intense investigation in quantum materials, optical lattices, and metamaterials. These efforts are motivated by potential realization of stron…
Band Structure Driven Thermoelectric Response of Topological Semiconductor ZrTe
Junbo Zhu, Changmin Lee, Fahad Mahmood +4
We report a transport, thermodynamic, and spectroscopic study of the recently identified topological semiconductor ZrTe with a focus on elucidating the connections between its…
Plethora of tunable Weyl fermions in kagome magnet Fe3Sn2 thin films
Zheng Ren, Hong Li, Shrinkhala Sharma +9
Interplay of magnetism and electronic band topology in unconventional magnets enables the creation and fine control of novel electronic phenomena. In this work, we use scanning tun…
Charge order landscape and competition with superconductivity in kagome metals
Mingu Kang, Shiang Fang, Jonggyu Yoo +13
In kagome metals AV3Sb5 (A = K, Rb, Cs), three-dimensional charge order (3D-CO) is the primary instability that sets the stage for other collective orders to emerge, including unid…
Spectroscopic Signatures of Interlayer Coupling in Janus MoSSe/MoS2 Heterostructures
Kunyan Zhang, Yunfan Guo, Daniel T. Larson +5
The interlayer coupling in van der Waals heterostructures governs a variety of optical and electronic properties. The intrinsic dipole moment of Janus transition metal dichalcogeni…
A flat band-induced correlated kagome metal
Linda Ye, Shiang Fang, Min Gu Kang +11
The notion of an electronic flat band refers to a collectively degenerate set of quantum mechanical eigenstates in periodic solids. The vanishing kinetic energy of flat bands relat…
A magnetic Weyl semimetallic phase in thin films of EuIrO
Xiaoran Liu, Shiang Fang, Yixing Fu +17
The interplay between electronic interactions and strong spin-orbit coupling is expected to create a plethora of fascinating correlated topological states of quantum matter. Of par…
Twofold van Hove singularity and origin of charge order in topological kagome superconductor CsV3Sb5
Mingu Kang, Shiang Fang, Jeong-Kyu Kim +14
The layered vanadium antimonides AV3Sb5 (A = K, Rb, Cs) are a recently discovered family of topological kagome metals with a rich phenomenology of strongly correlated electronic ph…
Ferromagnetic helical nodal line and Kane-Mele spin-orbit coupling in kagome metal Fe3Sn2
Shiang Fang, Linda Ye, Madhav Prasad Ghimire +8
The two-dimensional kagome lattice hosts Dirac fermions at its Brillouin zone corners K and K', analogous to the honeycomb lattice. In the density functional theory electronic stru…
A moiré superlattice on the surface of a topological insulator
Jennifer Cano, Shiang Fang, J. H. Pixley +1
Twisting van der Waals heterostructures to induce correlated many-body states provides a novel tuning mechanism in solid-state physics. In this work, we theoretically investigate t…
Effects of Structural Distortions on the Electronic Structure of T-type Transition Metal Dichalcogenides
Daniel T. Larson, Wei Chen, Steven B. Torrisi +3
Single-layer transition metal dichalcogenides (TMDCs) can adopt two distinct structures corresponding to different coordination of the metal atoms. TMDCs adopting the T-type struct…
Topological flat bands in frustrated kagome lattice CoSn
Mingu Kang, Shiang Fang, Linda Ye +8
Electronic flat bands in momentum space, arising from strong localization of electrons in real space, are an ideal stage to realize strong correlation phenomena. In certain lattice…
Collective excitations in twisted bilayer graphene close to the magic angle
Niels C. H. Hesp, Iacopo Torre, Daniel Rodan-Legrain +14
The electronic properties of twisted bilayer graphene (TBG) can be dramatically different from those of a single graphene layer, in particular when the two layers are rotated relat…
Intrinsic 1T' phase induced in atomically thin 2H-MoTe by a single terahertz pulse
Jiaojian Shi, Ya-Qing Bie, Alfred Zong +12
Polymorphic transitions in layered transition metal dichalcogenides provide an excellent platform for discovering exotic phenomena associated with metastable states, ranging from t…
Angle-Dependent {\it Ab initio} Low-Energy Hamiltonians for a Relaxed Twisted Bilayer Graphene Heterostructure
Shiang Fang, Stephen Carr, Ziyan Zhu +2
We present efficient angle-dependent low-energy Hamiltonians to describe the properties of the twisted bilayer graphene (tBLG) heterostructure, based on {\it ab initio} calculation…
Derivation of Wannier orbitals and minimal-basis tight-binding hamiltonians for twisted bilayer graphene: a first-principles approach
Stephen Carr, Shiang Fang, Hoi Chun Po +2
Twisted bilayer graphene (TBLG) has emerged as an important platform for studying correlated phenomena, including unconventional superconductivity, in two-dimensional systems. The…
Dirac fermions and flat bands in the ideal kagome metal FeSn
Mingu Kang, Linda Ye, Shiang Fang +19
The kagome lattice based on 3d transition metals is a versatile platform for novel topological phases hosting symmetry-protected electronic excitations and exotic magnetic ground s…
Clean 2D superconductivity in a bulk van der Waals superlattice
Aravind Devarakonda, Hisashi Inoue, Shiang Fang +7
Advances in low-dimensional superconductivity are often realized through improvements in material quality. Apart from a small group of organic materials, there is a near absence of…
Creating Weyl nodes and controlling their energy by magnetization rotation
Madhav Prasad Ghimire, Jorge I. Facio, Jhih-Shih You +6
As they do not rely on the presence of any crystal symmetry, Weyl nodes are robust topological features of an electronic structure that can occur at any momentum and energy. Acting…
Giant enhancement of interlayer exchange in an ultrathin 2D magnet
Dahlia R. Klein, David MacNeill, Qian Song +8
Following the recent isolation of monolayer CrI3, there has been a surge of new two-dimensional van der Waals magnetic materials, whose incorporation in van der Waals heterostructu…