van der Waals heterostructures
Imaging of interlayer coupling in van der Waals heterostructures using a bright-field optical microscope
... in heterostructures made from transition metal dichalcogenides using photolumines- cence imaging in a bright-eld optical ...of van der Waals heterostructures assembled by a wide variety ...
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Magnon assisted tunnelling in van der Waals heterostructures based on CrBr3
... assemble van der Waals heterostructures with a wide range of properties 4-6 ...tunnelling heterostructures 7-9 , which have been used to study the electronic states both in the ...
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Gate defined quantum confinement in InSe based Van der Waals heterostructures
... heterostructures containing 6-layer InSe (dark yellow central region) which is sandwiched between thick (20-40nm) hBN crystals. The overlapping graphene contacts are outlined by the dashed green lines. Top gates ...
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Mechanical Properties and Failure Behavior of Hexagonal Boron Nitride–Graphene van der Waals Heterostructures through Molecular Dynamics Simulation
... In this section, the tensile test of graphene single layer and hBN sheets and also their vdW heterostructures(i.e. BG and BGB) are investigated. The thickness of a single layer hBN and a graphene sheet is ...
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Gate defined quantum confinement in InSe based van der Waals heterostructures
... (25) Cui, X.; Lee, G.; Kim, Y. D.; Arefe, G.; Huang, P. Y.; Lee, C.; Chenet, D. A.; Zhang, X.; Wang, L.; Ye, F.; Pizzocchero, F.; Jessen, B. S.; Watanabe, K.; Taniguchi, T.; Muller, D. A.; Low, T.; Kim, P.; Hone, J. ...
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Measuring the local twist angle and layer arrangement in Van der Waals Heterostructures
... Typical characterization methods include, among others, optical microscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM) to obtain information about topography and thickness, Raman spectroscopy ...
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Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures
... specific regions of momentum space. Furthermore, for the case of chiral electrons, different states in momentum space (and thus with specific pseudospin orientation) have different tunneling probability – depending on ...
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High broad band photoresponsivity of mechanically formed InSe graphene van der Waals heterostructures
... In summary, our fi ndings demonstrate that mechanically formed heterojunctions of InSe and graphene have optical and electrical properties with potential for applications in optoelectronics. Our innovative fabrication ...
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Resonantly hybridized excitons in moiré superlattices in van der Waals heterostructures
... as studied here, is the dominant mechanism driving moir´e superlattice effects, producing hX states that inherit spectral properties of the intralayer and interlayer excitons. Our PL and RC measurements for varying twist ...
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Fast, multicolor photodetection with graphene contacted p GaSe/n InSe van der Waals heterostructures
... for van der Waals diode-like photodetectors [10, 22, 23], and 3 to 5 orders of magnitude faster than previously reported for photodetectors based on GaSe [13, 26, 27] or InSe alone [19, 28], which ...
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Zero energy modes and valley asymmetry in the Hofstadter spectrum of bilayer graphene van der Waals heterostructures with hBN
... Long-period moir´ e patterns are characteristic of well- aligned graphene heterostructures with hBN. They offer an experimentally-viable route [1–3] to observe fractal magnetic miniband spectra generic for ...
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Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi₂Te₃
... through van der Waals-like bonding between the Se and Te atomic planes at the ...epitaxial heterostructures of materials with significant differences in lattice symmetry with corresponding ...
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Van der Waals epitaxy and characterization of hexagonal boron nitride nanosheets on graphene
... fered the promise of potential applications for the prepar- ation of graphene/h-BN superlattice structures. The h-BN nanosheets on graphene had a high degree of crystallin- ity, except for various in-plane lattice ...
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A giant quantum Hall plateau in graphene coupled to an InSe van der Waals crystal
... In conclusion, we have reported on a giant QH plateau in monolayer graphene capped with InSe. The favorable alignment of the band structure of these two materials enables a transfer of electrons across their vdW ...
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Magnetotransport and lateral confinement in an InSe van der Waals heterostructure
... Most importantly, the in-plane electron masses are significantly lower than in TMDCs.[19] In recent experiments, the mobility of few-layer InSe has surpassed ~1,000 cm 2 /Vs and ~12,000 cm 2 /Vs at room temperature and ...
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Coherent acoustic phonons in van der Waals nanolayers and heterostructures
... Figure 7 shows the results for two vdW heterostructures. The first heterostructure is a homojunction obtained by exfoliation and mechanical contact of two InSe layers of thickness a = 50 nm and b = 77 nm on a ...
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Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3
... top view model of the interfacial Te and Se atomic planes. The positions of the fi rst Se layer are shown with blue rectangles on top of the red Te atoms. For clarity, the cross-sectional view of these two layers is also ...
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Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3
... through van der Waals-like bonding between the Se and Te atomic planes at the ...epitaxial heterostructures of materials with signi fi cant differences in lattice symmetry with corresponding ...
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Dielectric screening in metals and alloys
... The method of evaluating the dielectric function of a metal is based on imposing the external field due to a test charge, and evaluating the induced polarisation and the resulting induced field due to the response of the ...
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Theoretical study of the effects of solvents on global properties of ddq
... the van der Waals radii centered on the various atoms; the reaction field energy in kT (where T = 298 K), which is the energy of the interaction of the atom-centered charges with the solvent; the ...
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