Searching for high-efficiency photocatalysts overall water splitting is a promising strategy to solve the energy crisis and environmental problems. Among many kinds of photocatalysts, direct Z-scheme systems have attracted much attention. Here, we propose two-dimensional arsenene/ZrS2(HfS2) heterostructures as potential based on density functional theory simulations. Our calculations demonstrate that type-II band alignments with small gaps, facilitating spatial separation photo-generated...

Traffic crashes are a serious problem in modern civilization, causing enormous human and economic costs. Precise modeling of these incidents is vital for assessing road safety. Existing research often focuses on single aspects like accuracy, stability, or resistance to interference, overlooking holistic approach. This study introduces an innovative Gaussian radial Deep Belief Net-Gaussian Process Regression framework traffic modeling. It adeptly combines feature engineering predictive...

We theoretically study the valley- and spin-resolved scattering through magnetic barrier in a one layer thick silicene, using mode-matching method for Dirac equation. show that spin-valley filtering effect can be achieved also tuned completely both top bottom gate. Moreover, when reversing sign of staggered potential, we find direction valley polarization is switched while spin unchanged. These results provide some meaningful information to design valve residing on silicene.

We investigate the Cooper pair splitting based on crossed Andreev reflection in a two-dimensional narrow superconductor coupled to two leads, where leads are van der Waals (vdW) spin valves formed by inserting bilayer graphene (BLG) between antiparallel insulating ferromagnetic layers. In this BLG-based $n$-type vdW valve/superconductor/$p$-type valve junction with edge-contact geometry, when controlling Fermi energy and interlayer electric field BLG independently top- bottom-gate voltages...

The catalytic activity of single-layer ZnGeN₂ is better and the band edge positions can be effectively tuned to match with redox potentials water by biaxial strain.

We have investigated the Josephson coupling between two s-wave superconductors separated by ferromagnetic trilayers with noncollinear magnetization. find that long-range triplet critical current will oscillate strength of exchange field and thickness interface layer, when magnetizations are orthogonal to central This feature is induced spatial oscillations spin-triplet state |\uparrow\downarrow>+|\downarrow\uparrow> in layer. Moreover, can exhibit a characteristic nonmonotonic behavior,...

Abstract The long-range spin-triplet supercurrent transport is an interesting phenomenon in the superconductor/ferromagnet ("Equation missing"<!-- image only, no MathML or LaTex -->) heterostructure containing noncollinear magnetic domains. Here we study superharmonic Josephson current asymmetric "Equation --> junctions. It demonstrated that this induced by pairs − + thick layer. rotation of particularly thin layer will not only modulate amplitude but also realise conversion between and -->....

Based on the Bogoliubov--de Gennes equations, we investigate transport of Josephson current in a $\mathrm{S}/{f}_{L}\ensuremath{-}{\mathrm{F}}_{1}\ensuremath{-}{f}_{C}\ensuremath{-}{\mathrm{F}}_{2}\ensuremath{-}{f}_{R}/\mathrm{S}$ junction, where S and ${\mathrm{F}}_{1,2}$ are superconductors ferromagnets, ${f}_{L,C,R}$ left, central, right spin-active interfaces. These interfaces have noncollinear magnetizations, azimuthal angles magnetizations at ${\ensuremath{\chi}}_{L,C,R}$. We...

We study the supercurrent in clean superconductor-ferromagnet-superconductor heterostructure containing a noncollinear magnetic domain ferromagnetic region. It is demonstrated that can lead to spin-flip scattering process, which reverses spin orientations of singlet Cooper pair and simultaneously changes sign corresponding electronic momentum. If layers on both sides have same features, long-range proximity effect will take place. That because create an exact phase-cancellation gets...

Abstract Gate-tunable spin-resolved scattering through a Rashba spin–orbit (SO) coupling graphene barrier is considered theoretically by using mode-matching method. In this structure, we investigate the dependence of tunnelling transmission probability on spin orientation incident electron. It found that difference for opposite orientations exhibits considerable incident-angle-dependent features when both gate voltage and SO in region are present. The adjustable voltage. More specifically,...

Abstract Realizing valley asymmetric transmission(VAT) for incoming unpolarized Dirac carriers across an electrostatically modulated confinement potential(ECP) step, which is located at the interface of unipolar ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mi>n</mml:mi> <mml:mo>−</mml:mo> <mml:msup> <mml:mi>′</mml:mi> </mml:mrow> </mml:msup> </mml:math> ) junction in dual-gated Bernal-bilayer graphene(BBG), has caught growing attention because...

The doping evolution behaviors of the normal state magnetic excitations (MEs) nickelate La3Ni2O7 are theoretically studied in this paper. For a filling n = 3.0 which corresponds roughly to material realizes superconductivity about 80 K under moderately high pressures above 14 GPa, MEs exhibit square-like pattern centered at (0,0) originates from intrapocket particle-hole scatterings. Furthermore, it was found that show very strong modulations on interlayer momentum qz. With increasing qz,...

Abstract The doping evolution behaviors of the normal state magnetic excitations&amp;#xD;(MEs) pressurized nickelate La3Ni2O7 are theoretically studied in this paper. It&amp;#xD;was found that MEs parental compound have very strong dependence on the&amp;#xD;vertical momentum qz. For small qz, low energy exhibit a square-like pattern&amp;#xD;centered at (0, 0) which originates from intrapocket particle-hole scatterings. With&amp;#xD;the increasing square pattern diminishes gradually, and turn...

We investigate the incident angle-dependent spin polarisation transport in a ballistic nonmagnetic nanojunction with interfacial spin–orbit (SO) coupling by means of mode-matching approach. In absence SO coupling, for both delta function and square-shaped barriers, probabilities transmission up down are same even functions injection angle. On other hand, presence different asymmetric respect to direction normal incidence. Moreover, we study total properties analyse these systems. particular,...

We present a device concept for magnetoresistance (MR) effect in which two Van der Waals (vdW) spin valves are used as the left and right ferromagnetic (FM) leads connected by bilayer graphene channel material of central scattering region. Unlike conventional current-perpendicular-to-plane magnetic tunnel junction consisting FM thin films with insulating barrier sandwiched between them, our proposed current-in-plane MR vdW valves. This is important because application an out-of-plane...

In the traditional view, magnetic moment appearing in superconducting region is induced by equal-spin triplet correlations superconductor ($S$) ferromagnet ($F$) heterostructure with noncollinear magnetization. this paper, we represent that $NSF_1F_2$ ($N$--normal-metal) spin-valve structure emerging both $S$ and $N$ regions can also be generated Cooper pair splitting: one electron coherently tunnels from layer into $F_1$ layer, other stays or layer. Two electrons are spatially separated...

In this paper, we study theoretically the doping evolution behaviors of magnetic excitations (MEs) in monolayer CuO