van der Waals contacts
Magnon assisted tunnelling in van der Waals heterostructures based on CrBr3
... enable van der Waals heterostructures for spintronics, are proximity effects between electrode and ferromagnetic ...between contacts 1 and 3, when a current flows from contacts 2 to 4 ...
22
High broad band photoresponsivity of mechanically formed InSe graphene van der Waals heterostructures
... Au/Ti pads were also formed to provide contacts to the upper graphene strip, which was deposited in a later fabrication step (see below). An isolation layer formed by exposing a negative resist, AR-N, using ...
7
Magnetotransport and lateral confinement in an InSe van der Waals heterostructure
... To fabricate our devices we employ the dry transfer technique.[25,27,28] First, we use the top hBN layer (35nm thick) on polymethyl methacrylate (PMMA) membrane to pick up four few-layer graphene flakes serving as ...
11
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 ...
13
Gate defined quantum confinement in InSe based van der Waals heterostructures
... Indium selenide, a post-transition metal chalcogenide, is a novel two-dimensional (2D) semiconductor with interesting electronic properties. Its tunable band gap and high electron mobility have already attracted ...
19
Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures
... Figure S1: Optical micrographs showing the device fabrication steps: (a) bottom mono- layer graphene (bottom Gr) is transferred on top of the substrate hBN; (b) hBN tunnel barrier is transferred on top of the bottom ...
31
van der Waals and hygroscopic forces of adhesion generated by spider capture threads
... We measured the stickiness of some of these threads and photographed others under light and scanning electron (SEM) microscopes. Threads that were examined under the SEM were transferred to stubs and sputter coated with ...
7
CFD-DEM Investigation on van der Waals Force in Gas-Solid Bubbling Fluidized Beds
... harder for the gas to break down the particle- particle contacts rather than the particle-wall contacts. Moreover, this figure depicts that in- creasing the superficial velocity results in in- creasing both ...
13
Active Infrared Nanophotonics in van der Waals Materials
... drain contacts (3 nm Cr, 100 nm Au) are deposited on the bare graphene areas adjacent to the nanoresonator arrays using a shadow mask (purchased from Photo Etch Technology), and the sample is connected in a field ...
163
New models for intermolecular repulsion and their application to van der Waals complexes and crystals of organic molecules
... the van der W aals contacts o f organic ...the van der W aals ...en contacts is prim arily the result o f the anisotropic distribution o f electron density around the halogen ...
214
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 ...
6
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, ...
10
Influence of Van der Waals Interactions on the Solvation Energies of Adsorbates at Pt-Based Electrocatalysts
... of van der Waals (vdW) interactions described by different approaches on the solvation energy of *OH adsorbed on near-surface alloys (NSAs) of ...
6
First Principles Study on Solid Oxygen Using Van der Waals Density Functional
... For ferromagnetic pair, the potential energy curves have a slightly large equilibrium distance with a slightly high binding energy, compared with the quantum chemistry approaches [8, 11][r] ...
9
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 ...
7
Analytical Model for Charged Polytropic Stars with Van Der Waals Modified Equation of State
... p r , t , ρ , and σ are radial pressure, tangential pressure, energy density, electric field intensity and charge density, respectively and dots denote differentiation with respect to x. In this paper, we assume the ...
6
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 ...
5
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 ...
14
A van der Waals density functional theory study of poly(vinylidene difluoride) crystalline phases
... After crystallisation from melt or solution and subsequent thermal treatment, PVDF often exists as a mixture of polymorphs [7]. To estimate the fraction of each polymorph in a sample, experimentalists analyse diffraction ...
20
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 ...
27