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van der Waals

Renormalization and Universality of Van der Waals forces

Renormalization and Universality of Van der Waals forces

... Van der Waals forces, besides being long range, di- verge if directly extrapolated to short distance scales but a sensible interpretation becomes possible [6, ...

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Analytical Model for Charged Polytropic Stars with Van Der Waals Modified Equation of State

Analytical Model for Charged Polytropic Stars with Van Der Waals Modified Equation of State

... considering Van der Waals modified equation of state with polytropic ...original Van der Waals modified equation of state that is ...

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CFD-DEM Investigation on van der Waals Force in Gas-Solid Bubbling Fluidized Beds

CFD-DEM Investigation on van der Waals Force in Gas-Solid Bubbling Fluidized Beds

... Effect of interparticle force on the hydrodynamic of gas-solid fluid- ized beds was investigated using the combined method of computa- tional fluid dynamics and discrete element method (CFD-DEM). The cohesive force ...

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Inclusion of Van der Waals Interactions in DFT using Wannier Functions without empirical parameters

Inclusion of Van der Waals Interactions in DFT using Wannier Functions without empirical parameters

... Density Functional Theory (DFT) is a well-established computational approach to study the structural and elec- tronic properties of condensed matter systems from first principles. Although current, approximated density ...

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Influence of Van der Waals Interactions on the Solvation Energies of Adsorbates at Pt-Based Electrocatalysts

Influence of Van der Waals Interactions on the Solvation Energies of Adsorbates at Pt-Based Electrocatalysts

... In general, dispersion-corrected functionals or those incorporating vdW forces self-consistently tend to increase the adsorption energy of water on metal surfaces. However, the majority of computa- tional ...

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Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures

Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures

... in van der Waals (vdW) heterostructures(14, 15) in which graphene (Gr) and hexagonal boron nitride (hBN) are stacked in a multilayer structure ...

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A giant quantum Hall plateau in graphene coupled to an InSe van der Waals crystal

A giant quantum Hall plateau in graphene coupled to an InSe van der Waals crystal

... We report on a “ giant ” quantum Hall effect plateau in a graphene-based field-effect transistor where graphene is capped by a layer of the van der Waals crystal InSe. The giant quantum Hall effect ...

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Updated Definition of the Three Solvent Descriptors Related to the Van der Waals Forces in Solutions

Updated Definition of the Three Solvent Descriptors Related to the Van der Waals Forces in Solutions

... We have applied in the present study, a predictive tool for Vw using the SMT procedure described in 2.2, which appears rather satisfactory as shown in Figure 1, and alternatively applicable to the values from ...

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Multidimensional Stability of Subsonic Phase Transitions in a Non Isothermal Van Der Waals Fluid

Multidimensional Stability of Subsonic Phase Transitions in a Non Isothermal Van Der Waals Fluid

... We show the multidimensional stability of subsonic phase transitions in a non-isothermal van der Waals fluid. Based on the existence result of planar waves in our previous work [1], a jump condition ...

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Nearly room temperature ferromagnetism in a magnetic metal-rich van der Waals metal

Nearly room temperature ferromagnetism in a magnetic metal-rich van der Waals metal

... two-dimensional van der Waals crystals constitute a most promising material class for long- distance spin transport or effective spin manipulation at room ...

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Bouncing off the walls : the influence of gas kinetic and van der Waals effects in drop impact

Bouncing off the walls : the influence of gas kinetic and van der Waals effects in drop impact

... A model is developed for liquid drop impact on a solid surface that captures the thin film gas flow beneath the drop, even when the film’s thickness is below the mean free path in the gas so that gas kinetic effects ...

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A Generalized van der Waals Model for Light Gas Adsorption Prediction in IRMOFs

A Generalized van der Waals Model for Light Gas Adsorption Prediction in IRMOFs

... By making reasonable simplification to the structures of isoreticular metal-organic frameworks (IRMOFs) and defining important attractive regions of square-well potential, an adsorption model derived from the Generalized ...

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MoS 2-on-paper optoelectronics: drawing photodetectors with van der Waals semiconductors beyond graphite

MoS 2-on-paper optoelectronics: drawing photodetectors with van der Waals semiconductors beyond graphite

... the fabricated devices as broadband photodectectors with spectral sensitivity in the ultraviolet (UV), visible (VIS) and near-infrared (NIR) range. Moreover, the paper-based photodetectors can be used to acquire pictures ...

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Performance of a Non-Local Van der Waals Density Functional on the Dissociation of H2 on Metal Surfaces

Performance of a Non-Local Van der Waals Density Functional on the Dissociation of H2 on Metal Surfaces

... By considering these effects for early and late barriers it is possible to explain the dif- ferences between SRP48 and optPBE-vdW-DF barriers in table 3, as well as make more general predictions for differences between ...

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New models for intermolecular repulsion and their application to van der Waals complexes and crystals of organic molecules

New models for intermolecular repulsion and their application to van der Waals complexes and crystals of organic molecules

... A slightly different interaction-optimised DZP basis set was used labelled as DZP/ [195]. DZP/ consists of a double-^ (DZ) set, which is (9s5p) contracted to [4^2p] on C and O, and (4s) contracted to [2^] on H, augmented ...

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A Modified van der Waals Mixture Theory for Associating Fluids: Application to Ternary Aqueous Mixtures

A Modified van der Waals Mixture Theory for Associating Fluids: Application to Ternary Aqueous Mixtures

... a van der Waals equation of state parameter b van der Waals equation of state parameter A Molar Helmholtz free energy G Molar Gibbs free energy H Enthalpy I Number of same ...

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High broad band photoresponsivity of mechanically formed InSe graphene van der Waals heterostructures

High broad band photoresponsivity of mechanically formed InSe graphene van der Waals heterostructures

... Here, we report on van der Waals graphene/InSe hetero- structures formed by mechanical contact due to attractive vdW forces at the graphene/InSe interface. We exploit the broad- band transparency of ...

7

Imaging of interlayer coupling in van der Waals heterostructures using a bright-field optical microscope

Imaging of interlayer coupling in van der Waals heterostructures using a bright-field optical microscope

... of van der Waals heterostructures assembled by a wide variety of methods, using combinations of materials obtained through mechanical or chemical exfoliation and crystal ...

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A van der Waals density functional theory study of poly(vinylidene difluoride) crystalline phases

A van der Waals density functional theory study of poly(vinylidene difluoride) crystalline phases

... All calculations were performed with Quantum ESPRESSO (QE) [22], versions 5.2 and 5.3, which implements density functional theory using a planewave basis set. The study investigated the performance of different exchange ...

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Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3

Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3

... corrected scanning transmission electron microscopy and electron energy loss spectroscopy show an atomically sharp Fe I Cu 1 −x Se/Bi 2 Te 3 interface. The Fe x Cu 1 −x Se/Bi 2 Te 3 interface is determined by Se – Te ...

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