458 citations · 1.1k across the 21 of their papers we have counts for
21 papers
Revealing the conduction band and pseudovector potential in 2D moiré semiconductors
Abigail J. Graham, Heonjoon Park, Paul V. Nguyen +12
Stacking monolayer semiconductors results in moiré patterns that host many correlated and topological electronic phenomena, but measurements of the basic electronic structure under…
Robustness of momentum-indirect interlayer excitons in MoS2/WSe2 heterostructure against charge carrier doping
Ekaterina Khestanova, Tatyana Ivanova, Roland Gillen +13
Monolayer transition-metal dichalcogenide (TMD) semiconductors exhibit strong excitonic effects and hold promise for optical and optoelectronic applications. Yet, electron doping o…
Tunable Electron Transport in Defect-Engineered PdSe
Tanima Kundu, Barnik Pal, Bikash Das +8
Tuning the ambipolar behavior in charge carrier transport via defect-engineering is crucial for achieving high mobility transistors for nonlinear logic circuits. Here, we present t…
A robust weak topological insulator in a bismuth halide Bi4Br2I2
Ryo Noguchi, Masaru Kobayashi, Kaishu Kawaguchi +11
We apply a topological material design concept for selecting a bulk topology of 3D crystals by different van-der-Waals stacking of 2D topological insulator layers, and find a bismu…
Band alignment and interlayer hybridisation in transition metal dichalcogenide/hexagonal boron nitride heterostructures
S. J. Magorrian, A. J. Graham, N. Yeung +6
In van der Waals heterostructures, the relative alignment of bands between layers, and the resulting band hybridisation, are key factors in determining a range of electronic proper…
Observation of Γ-valley moiré bands and emergent hexagonal lattice in twisted transition metal dichalcogenides
Ding Pei, Binbin Wang, Zishu Zhou +19
Twisted van der Waals heterostructures have recently been proposed as a condensed-matter platform for realizing controllable quantum models due to the low-energy moiré bands with s…
Large anomalous Hall effect induced by weak ferromagnetism in the noncentrosymmetric antiferromagnet
Hiroaki Tanaka, Shota Okazaki, Kenta Kuroda +13
We study the mechanism of the exceptionally large anomalous Hall effect (AHE) in the noncentrosymmetric antiferromagnet by angle-resolved pho…
Domain dependent Fermi arcs observed in a striped phase dichalcogenide
T. Mizokawa, A. Barinov, V. Kandyba +11
Angle-resolved photoemission spectromicroscopy on IrTe2 reveals evolution of mesoscopic striped domains across its first order phase transition at about 280 K. The striped texture…
Observation of Topological Superconductivity in a Stoichiometric Transition Metal Dichalcogenide 2M-WS2
Y. W. Li, H. J. Zheng, Y. Q. Fang +22
Topological superconductors (TSCs) are unconventional superconductors with bulk superconducting gap and in-gap Majorana states on the boundary that may be used as topological qubit…
Moiré superlattice effects and band structure evolution in near-30-degree twisted bilayer graphene
Matthew J. Hamer, Alessio Giampietri, Viktor Kandyba +6
In stacks of two-dimensional crystals, mismatch of their lattice constants and misalignment of crystallographic axes lead to formation of moiré patterns. We show that moiré superla…
Atomic and electronic structure of two-dimensional Mo(1-x)WxS2 alloys
Xue Xia, Siow Mean Loh, Jacob Viner +8
Alloying enables engineering of the electronic structure of semiconductors for optoelectronic applications. Due to their similar lattice parameters, the two-dimensional semiconduct…
Observation of topological electronic structure in quasi-1D superconductor TaSe3
Cheng Chen, Aiji Liang, Shuai Liu +21
Topological superconductors (TSCs), with the capability to host Majorana bound states that can lead to non-Abelian statistics and application in quantum computation, have been one…
Ghost anti-crossings caused by interlayer umklapp hybridization of bands in 2D heterostructures
Abigail J. Graham, Johanna Zultak, Matthew J. Hamer +13
In two-dimensional heterostructures, crystalline atomic layers with differing lattice parameters can stack directly one on another. The resultant close proximity of atomic lattices…
Determination of interatomic coupling between two-dimensional crystals using angle-resolved photoemission spectroscopy
J. J. P. Thompson, D. Pei, H. Peng +7
Lack of directional bonding between two-dimensional crystals like graphene or monolayer transition metal dichalcogenides provides unusual freedom in selection of components for ver…
Direct evidence for flat bands in twisted bilayer graphene from nano-ARPES
Simone Lisi, Xiaobo Lu, Tjerk Benschop +21
Transport experiments in twisted bilayer graphene revealed multiple superconducting domes separated by correlated insulating states. These properties are generally associated with…
Material design with the van der Waals stacking of bismuth-halide chains realizing a higher-order topological insulator
Ryo Noguchi, Masaru Kobayashi, Zhanzhi Jiang +28
The van der Waals (vdW) materials with low dimensions have been extensively studied as a platform to generate exotic quantum properties. Advancing this view, a great deal of attent…
Atomic reconstruction in twisted bilayers of transition metal dichalcogenides
Astrid Weston, Yichao Zou, Vladimir Enaldiev +17
Van der Waals heterostructures form a massive interdisciplinary research field, fueled by the rich material science opportunities presented by layer assembly of artificial solids w…
Tuning Dirac nodes with correlated d-electrons in BaCo_{1-x}Ni_{x}S_{2}
N. Nilforoushan, M. Casula, A. Amaricci +15
Dirac fermions play a central role in the study of topological phases, for they can generate a variety of exotic states, such as Weyl semimetals and topological insulators. The con…
Visualizing electrostatic gating effects in two-dimensional heterostructures
Paul V. Nguyen, Natalie C. Teutsch, Nathan P. Wilson +9
The ability to directly observe electronic band structure in modern nanoscale field-effect devices could transform understanding of their physics and function. One could, for examp…
Indirect to direct gap crossover in two-dimensional InSe revealed by ARPES
Matthew Hamer, Johanna Zultak, Anastasia V. Tyurnina +16
Atomically thin films of III-VI post-transition metal chalcogenides (InSe and GaSe) form an interesting class of two-dimensional semiconductor that feature strong variations of the…
Band parameters and hybridization in 2D semiconductor heterostructures from photoemission spectroscopy
Neil R. Wilson, Paul V. Nguyen, Kyle L. Seyler +9
Combining monolayers of different two-dimensional (2D) semiconductors into heterostructures opens up a wealth of possibilities for novel electronic and optical functionalities. Exp…