van der Waals (vdW) heterojunctions stacked by different two-dimensional (2D) layered materials not only exhibit the complementary effect of short plates, but also harbor novel physical phenomena. In particular, emergence 2D magnetic vdW has provided opportunities for application these in spintronics. However, to best our knowledge, date, spin-related transport mechanism tunnel junctions (MTJs) based on and pinning layers their properties have been elucidated non-equilibrium state theory....

Multiferroic tunnel junctions (MFTJs) based on two-dimensional van der Waals heterostructures with sharp and clean interfaces at the atomic scale are crucial for applications in nanoscale multiresistive logic memory devices. The recently discovered sliding ferroelectricity 2D materials has opened new avenues ferroelectric-based Here, we theoretically investigate spin-dependent electronic transport properties of...

A novel red phosphor composed of Mn⁴⁺-activated oxyfluoroniobate BaNbOF₅was obtained at room temperature in air. The as-prepared showed a broad and intense absorption the blue-light region bright luminescence with color purity 97.7%.

Obtaining reliable dynamic mechanical properties through experiments is essential for developing and validating constitutive models in material selection structural design. This study introduces a tensile method using modified M-type specimen loaded by split Hopkinson pressure bar (SHPB). A closed was thus employed. Finite element simulations were used to validate the design of specimen, which fabricated 17-4PH (precipitation hardening) stainless steel powder with 3D (three-dimensional)...

A red phosphor, Ba₃Sc₂F₁₂:Mn⁴⁺, with extraordinary thermal stability and for application in “warm” white LEDs backlighting, was obtained at room temperature its luminescence intensity has been improved by optimizing synthetic parameters.

The Majorana zero mode (MZM), which manifests as an exotic neutral excitation in superconductors, is the building block of topological quantum computing. It has recently been found vortices several iron-based superconductors a zero-bias conductance peak tunneling spectroscopy. In particular, clean and robust MZM observed cores free (Li0.84Fe0.16)OHFeSe. Here using scanning spectroscopy, we demonstrate that Majorana-induced resonant Andreev reflection occurs between STM tip this bound state,...

The development of phase change material (PCM) for battery thermal management poses key limitations on its reliability caused by leakage and shape deformation under high temperature. In this work, a kind changeable hydrophobic polymer skeleton is grown in situ paraffin (PA)/expanded graphite matrix to obtain the leakage-proof composite PCM (CPCM) at kilogram-level. Benefiting from additional latent heat provided alkyl side chains skeleton, obtained CPCM shows 120.3 J g–1 coupled with...

Tunneling magnetoresistance (TMR) and spin filtering effects in the magnetic tunnel junctions (MTJs) have drawn much attention for potential spintronic applications based on manipulation of electric transport. However, traditional MTJs cannot meet demand rapid miniaturization electronic components. Thus, van der Waals (vdW) with a few atomic layers stacked vertically are ideal candidates scale devices. In this work, by employing non-equilibrium Green's function combined density-functional...

We explored the possibility of realizing quantum anomalous Hall effect by placing a heavy-element atomic layer on top monolayer ${\mathrm{CrI}}_{3}$ with natural cleavage surface and broken time-reversal symmetry. showed that ${\mathrm{CrI}}_{3}/X$ ($X=\text{Bi}$, Sb, or As) systems can open up sizable bulk gap to harbor effect; e.g., ${\mathrm{CrI}}_{3}/\mathrm{Bi}$ is magnetic insulator 30 meV, which be further enlarged via strain engineering adjusting spin orientations. also found...

As the control brain of petrochemical plant, blast-resistant performance requirements are important for sustainability room and should be guaranteed when vapor cloud explosion occurs in production process. The 3D-Kagome truss core sandwich structure is a kind material with high energy absorption recycling. Considering influential factors radius rod thickness upper lower panels, this paper, real steel wall was analyzed. With optimization goal plastic deformation panel displacement, optimal...

We numerically investigate the electronic transport properties between two mesoscopic graphene disks with a twist by employing density functional theory coupled nonequilibrium Green's function technique. By attaching leads to upper and lower layers separately, we explore systematically dependence of on angle, Fermi energy, system size, layer stacking order, axis. When choosing different axes for either AA- or AB-stacked bilayer graphene, find that conductance angle displays qualitatively...

The dynamic constitutive behaviors of concrete-like materials are vital importance for structure designing under impact loading conditions. This study proposes a new method to evaluate the ordinary concrete at high strain rates. proposed combines Lagrangian-inverse analysis with optical techniques (ultra-high-speed camera and digital image correlation techniques). is validated against finite-element simulation. Spalling tests were conducted on concretes where employed obtain high-frequency...

Abstract The Molecule magnets Materials {[N(n-C4H9)4][MIIFeIII(C2O4)3]}n (M=Zn Fe) were investigated by magnetic measurements and Mossbauer spectroscopy .In the complex {[N(n-C4H9)4][ZnII0.03FeII0.97 FeIII(C2O4)3]}n detailed investigation of ferromagnetism behaviour, a compensation temperature has found with field being less than 1KOe. And 57Fe had been carried out in {[N(n-C4H9)4][FeIIFeIII(C2O4)3]}n to investigate mixed valency character antiferromagnetic coupling. Some ferrimagnets...

Underwater explosion test has been proven to be a simple way measure the equation of state detonation products. In order further develop this technology, new method for determining Jones-Wilkins-Lee (JWL-EOS) by underwater with spherical charge was designed based on self-developed pressure-conducted velocity probe in paper. First all, we established an experimental system measurement near-field shock wave using novel probe, which made it possible continuously record velocities and given...