Research & science

Research & science Chiral Landau levels induced by two in-plane pseudomagnetic fields in underwater acoustic metamaterials arXiv:2607.13426v1 Announce Type: new Abstract: The chiral zeroth Landau levels (LLs) constitute topologically protected bulk states that enable robust control of acoustic wave propagation. Given the central role of underwater acoustics in marine engineering, realizing such Landau-level physics in underwater acoustic systems is highly desirable. Nevertheless, existing studies have primarily bee… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Engineering Nanophotonic Modes via the Radiation Continuum arXiv:2607.13288v1 Announce Type: cross Abstract: We demonstrate, experimentally and theoretically, a universal mechanism for combining nanophotonic modes relying on radiative-loss-mediated couplings. For the case of two modes this mechanism leads to a BIC-type phenomenon characterized by the emergence of a high-quality factor subradiant mode. This mode is experimentally observed in the mid-inf… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Photonic Ising machines toward and beyond a million spins arXiv:2607.13446v1 Announce Type: cross Abstract: Combinatorial optimization problems are central to many challenges in logistics, finance, engineering, and the life sciences, yet they remain among the most computationally demanding. Many of these problems can be mapped onto the Ising model, in which binary spins interact through a network of couplings, and solutions correspond to low-energy, i… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Microscopic constitutive theory of stress overshoot, yielding, and strain hardening in amorphous materials arXiv:2607.13734v1 Announce Type: cross Abstract: We develop a microscopic constitutive theory for the nonlinear deformation of metallic and polymer glasses based on nonaffine elasticity coupled to irreversible many-body relaxation. The theory predicts the full stress--strain response, from linear elasticity through stress overshoot and yielding to steady plastic flow. We show that stress overs… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Wireless millikelvin interconnects for superconducting quantum hardware arXiv:2607.13834v1 Announce Type: cross Abstract: Scalable quantum computing is limited by the dense network of electrical interconnects linking cryogenic quantum processors to room-temperature control electronics. To overcome this bottleneck, considerable effort has focused on cryogenic CMOS electronics and microwave-to-optical transduction, aiming to reduce wiring complexity and thermal loadi… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Temporal Fourier Optics Reveals Hidden Hybridized Light-Matter States arXiv:2607.13957v1 Announce Type: cross Abstract: Spectral measurements provide fundamental insights into wave systems by revealing resonances, mode hybridization, and light-matter interactions. However, intrinsic dissipation and measurement-induced spectral broadening often conceal the underlying hybridized light-matter states that give rise to measured spectra. Here, we establish a space-time… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Contact-resolved deployment of the Contour Neurovascular System in patient-specific intracranial aneurysms arXiv:2607.13972v1 Announce Type: cross Abstract: While intrasaccular flow disruptors are widely used to treat wide-neck intracranial aneurysms, state-of-the-art patient-specific computational models routinely neglect the deployment mechanics by prescribing a pre-seated geometry. This shortcut oversimplifies the true physics and misrepresents the Contour Neurovascular System (CNS), whose critic… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Sail membranes for optomechanical accelerometry arXiv:2607.14089v1 Announce Type: cross Abstract: Strained membrane resonators have emerged as a promising platform for optomechanical accelerometry; however, the desired combination of low frequency and high $Q$-mass product requires a rethinking of their dissipation dilution engineering. Applying Bayesian optimization to a Si$_3$N$_4$ membrane, we discover a class of sail-like trampoline reso… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science Surface Excitations, Energy Loss, and Decoherence in Electron Interferometry arXiv:2606.01004v2 Announce Type: replace Abstract: A recent pedagogical paper by Strauch concretely demonstrated how interaction-mediated entanglement can suppress fringe visibility in a one-dimensional model of the electron double-slit experiment. Here we extend that framework to model actual experimental data from electron biprism interferometry. Kerker et al. showed that the macroscopic QED… arXiv — physics.app-ph (Applied Physics preprints) · 16 Jul 2026 Research & science DeepCormack: Fermi surface tomography using model-based data-driven algorithms arXiv:2607.13107v1 Announce Type: new Abstract: The experimental reconstruction of the 3D two-photon momentum density (TPMD) via angular correlation of electron-positron annihilation radiation (ACAR) is a particularly useful method for studying material Fermi surfaces. It does not rely on low temperatures, UHV conditions, or strong magnetic fields, and enables the study of the spin-resolved ele… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Synthesis of the Elusive Bulk Iodide Double-Perovskite Semiconductor, Cs2AgBiI6: Microcrystals and Photoconductive Films arXiv:2607.13180v1 Announce Type: new Abstract: Three-dimensional (3D) iodide double-perovskite (elpasolite) semiconductors have attracted interest as potential lead-free metal-halide absorber layers for solar applications. Although studied extensively by computational methods, they have remained largely inaccessible synthetically, consistent with their predicted thermodynamic instability. Here… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Multiwavelength Raman investigation of mono- and few-layer MoS2 grown by Pulsed Laser Deposition on SiO2 arXiv:2607.13211v1 Announce Type: new Abstract: Molybdenum disulfide (MoS$_2$) is a semiconductor whose vibrational and excitonic properties are highly sensitive to layer number and structural disorder. We demonstrate the growth of MoS$_2$ monolayers on inert, electronics-compatible SiO$_2$ substrates using room-temperature pulsed laser deposition (PLD). Control of the process parameters enable… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Direct Imaging of Temperature Evolution of Polar Nanoregions and Chemically Ordered Regions in PMN Relaxor: Evidence for Polar Phase Percolation arXiv:2607.13364v1 Announce Type: new Abstract: Polar nanoregions (PNRs) are central to understanding the exceptional dielectric and piezoelectric properties of relaxor ferroelectrics and are key to advancing dielectrics for high-energy storage. However, direct real-space imaging of their formation and evolution remains a major challenge in condensed matter physics. Here, we report the real-spa… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Resistivity in Dilute Cu-3d Alloys Governed by Disorder-Induced Band Broadening arXiv:2607.13419v1 Announce Type: new Abstract: The mechanism governing the resistivity in dilute Cu-3d transition-metal alloys at ambient temperature -- the regime relevant to most practical applications and distinct from the low-temperature, Kondo-screened regime addressed by earlier theoretical work -- is investigated using first-principles calculations based on the Korringa--Kohn--Rostoker … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Physics-Informed Residual Deep Learning for Constitutive Modeling of Hot Deformation and Dynamic Recrystallization in a Mo-Rich $\alpha+\beta$ Titanium Alloy arXiv:2607.13467v1 Announce Type: new Abstract: Accurate constitutive modeling of hot deformation behavior is essential for designing thermomechanical processes in advanced structural alloys. Conventional Arrhenius-type and empirical models do not adequately capture the combined effects of strain hardening, dynamic recovery (DRV), and dynamic recrystallization (DRX) across broad processing cond… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Hybridization-controlled re-entrant electronic phase switching and moire-confined states in twisted bilayer PtTe2 arXiv:2607.13529v1 Announce Type: new Abstract: Twisting a van der Waals bilayer changes not only the moir\'e periodicity but also the local stacking and interlayer hybridization. Here, we show, using fully relaxed first-principles calculations including spin--orbit coupling, band unfolding, and Brillouin-zone-integrated densities of states, that bilayer PtTe$_2$ exhibits a non-monotonic evolut… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Rotation topological states: theory and material realization arXiv:2607.13575v1 Announce Type: new Abstract: The conventional characterization of topological materials relies on topological invariants calculated from the entire set of occupied bands. However, when a system possesses rotational symmetry, the occupied Hilbert space can be decomposed into multiple subspaces labeled by distinct rotation eigenvalues. We show that this decomposition reveals hi… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Research progress in high-pressure tuning of layered magnetic materials arXiv:2607.13632v1 Announce Type: new Abstract: Two-dimensional van der Waals materials have enormous potential applications in many fields due to their unique layered structure and excellent properties. Compared with three-dimensional bulk materials, layered systems are coupled by weak van der Waals interactions between layers, endowing them with much higher structural compressibility, particu… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Role of small-radius and high-electronegativity A-Site dopants in enhancing proton transport and stability of perovskite electrolytes arXiv:2607.13657v1 Announce Type: new Abstract: The practical application of BaCeO$_3$-based electrolytes is limited by their poor chemical stability in proton-conducting solid oxide fuel cells. Commonly employed B-site doping strategies typically improve proton transport with limited improvement in stability. Recent experiments show that A-site Ca doping can simultaneously enhance both propert… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Mapping recrystallization trajectories in GaAs using latent space diffraction analysis arXiv:2607.13779v1 Announce Type: new Abstract: Recrystallization in disordered solids proceeds through a sequence of local structural rearrangements that are difficult to resolve using conventional diffraction analysis. In amorphous and partially ordered materials, subtle variations in diffuse scattering, short-range order, and defect-mediated symmetry emergence encode the pathways through whi… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science First-principles Study of Structural and Electronic Properties of Mn-doped Cu2NiXY4 (X=Sn, Ge, Si; Y=S, Se) Chalcogenide Semiconductors arXiv:2607.13846v1 Announce Type: new Abstract: In this work, the effect of partial substitution of Mn by Ni on the structural and electronic properties of kesterite systems Cu2NiXY4 (X = Sn, Ge, Si; Y = S, Se) was studied using density functional theory (DFT). The mBJ+U method was used to characterize the bandgap more accurately. To the best of our knowledge, a systematic comparative study of … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Temperature-driven sodium-ion dynamical-to-static crossover in the zig-zag ordered phase of Na$_{0.5}$CoO$_2$ arXiv:2607.13848v1 Announce Type: new Abstract: We employ polarization-resolved Raman spectroscopy combined with first-principles calculations to study the sodium-ion lattice dynamics in a sodium zig-zag ordered cobaltate compound Na$_{0.5}$CoO$_2$. We detect two sodium phonon modes for the first time, and their mode frequencies are consistent with first-principles phonon calculations based on … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Electron Beam Radiolysis-Assisted Growth of Rutile TiO2 Thin Films arXiv:2607.13851v1 Announce Type: new Abstract: A new approach for growing crystalline thin films is developed that takes advantage of electron beam radiolysis being a constructive force to rearrange atoms into a crystalline structure. It is demonstrated that by irradiating the surface of a TiO2 film by an electron beam supplied by a reflection high energy electron diffraction (RHEED) gun insid… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Ultrafast altermagnetophononics arXiv:2607.13863v1 Announce Type: new Abstract: Altermagnets feature symmetry-dictated nontrivial spin splitting in electronic structure promising for next-generation spintronics, yet their ultrafast dynamical manipulation remains largely unexplored. Here, we establish altermagnetophononics as an efficient route for magnetic control via selective symmetry breaking induced by coherent phonons. U… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Revealing the MoS2 Growth Mechanism in Chemical Vapor Deposition: Real-Time Imaging and Statistical Analysis arXiv:2607.13893v1 Announce Type: new Abstract: Chemical Vapor Deposition (CVD) is a promising method for scalable synthesis of two-dimensional transitional metal dichalcogenides (TMDs) such as MoS2, but challenges in reproducibility and controllability persist due to an incomplete understanding of their dynamic growth mechanisms. While in-situ characterization methods could provide valuable in… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Chemical short-range order controls deformation pathways in a complex concentrated alloy arXiv:2607.13896v1 Announce Type: new Abstract: Chemical short-range order (CSRO) is an intrinsic feature of complex concentrated alloys (CCAs), yet its influence on deformation mechanisms is controversial because of the inconclusive state of concurrent CSRO quantification during deformation. Here, we provide experimental evidence that CSRO acts as an intrinsic thermodynamic state variable gove… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Dolomite Mineral-Inspired Equilateral Triangular-Lattice Magnets for Quantum Magnetism arXiv:2607.13949v1 Announce Type: new Abstract: Equilateral triangular lattice magnets provide a versatile materials platform for exploring exotic quantum spin phenomena, while their field-tunable magnetic entropy offers opportunities for low-temperature adiabatic demagnetization refrigeration. Inspired by the natural mineral, we proposed a chemical strategy to achieve equilateral TL magnets, l… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Using superpixels for interpretable feature reduction in large 2D diffraction datasets arXiv:2607.13979v1 Announce Type: new Abstract: Large 2D diffraction datasets, consisting of hundreds or thousands of measurements, are commonly acquired with 4D-STEM electron diffraction or at synchrotron X-ray beamlines. Machine learning and artificial intelligence offer great promise for analyzing these datasets. However, the sheer volume of data presents a significant data processing bottle… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science The WEST code for large-scale excited-state materials simulations arXiv:2607.14025v1 Announce Type: new Abstract: We present WEST, an open-source plane-wave pseudopotential code for large-scale excited-state materials simulations, and describe its theoretical foundations, software architecture, and capabilities. WEST implements full-frequency GW, quantum defect embedding theory, the Bethe-Salpeter equation, and time-dependent density functional theory within … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Orbital Hybridization Induces Giant Cubic Rashba Effect at Cu/WO$_{3}$ Interface arXiv:2607.14069v1 Announce Type: new Abstract: Harnessing Rashba spin-orbit interaction and related spintronic functionalities has traditionally relied on metallic surfaces or interfaces containing elemental heavy metals. Here, using first-principles calculations and Cu(001)/WO$_3$(001) as a model heterostructure, we show that interfacing a light metal, Cu, with a band insulator, WO$_3$, yield… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Symmetry-Informed Deep Learning for Electromagnetic Scattering arXiv:2607.12810v1 Announce Type: cross Abstract: Deep learning can accelerate the modeling of electromagnetic devices by replacing costly simulations with neural networks trained to map design parameters to scattering parameters. However, data efficiency remains a central bottleneck, as training data is typically generated through expensive numerical simulations. Here we show that symmetry pro… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science On multipoles, their decomposition by time-reversal symmetry, and the electric toroidal monopole arXiv:2607.13053v1 Announce Type: cross Abstract: The multipole decomposition of the single-site density matrix provides a symmetry-adapted representation of local electronic degrees of freedom. Conventional, so-called fixed-shell, formulations do not span the full local single-particle operator space, as only operators mapping within the same orbital $l$ are resolved. Here we construct a compl… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science When is the combined load identifiable from a stress-intensity profile? A coupled forward-inverse study on SIFBench finite-element data arXiv:2607.13074v1 Announce Type: cross Abstract: This work studies the inverse problem of recovering the relative magnitudes of the tension, bending, and bearing loads acting on a crack from its stress-intensity-factor profile along the crack front, using the public SIFBench finite-element data. The central claim is not forensic load recovery on field cases, but a rigorous characterization of … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Cooper pairing with the onsite exchange interaction: A possible mechanism of high-temperature superconductivity arXiv:2607.13086v1 Announce Type: cross Abstract: Among the various mechanisms proposed for unconventional superconductivity, this paper focuses on the Coulomb interaction responsible for $d$-wave and $s\pm$-wave pairing symmetries in cuprates and iron pnictides. Although the effective interaction $U_\text{eff}=U-J$ is predominantly repulsive, an attractive component arising from the Hund's cou… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Three-Dimensional Non-Foliated Fractional Quantum Hall Phases with Irrational Anyons in Twisted van der Waals Multilayers arXiv:2607.13127v1 Announce Type: cross Abstract: Three-dimensional fractional quantum Hall phases offer a route to intrinsically higher-dimensional topological order beyond simple stacks of two-dimensional quantum Hall liquids. Such phases can exhibit non-foliated, intrinsically three-dimensional entanglement structures, exponentially large topological degeneracies and quasiparticles with irra… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Electronic properties and topological aspects of graphene nanohelicoids arXiv:2607.13294v1 Announce Type: cross Abstract: We introduce graphene nanohelicoids, geometric analogues of graphene nanoribbons, in which the honeycomb lattice is embedded on a helicoidal surface. Starting from the three-dimensional helical structure, we construct effective one-dimensional lattice models with band structures characterized by a momentum-shifted particle-hole relation $E_v(k)=… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Precision quantum simulation of magnon spectra and interactions arXiv:2607.13301v1 Announce Type: cross Abstract: Quantum simulation promises to advance materials discovery by accurately simulating complex states of matter, their microscopic excitations, and macroscopic response functions. The central challenge in resolving the underlying interacting dynamics is to combine high-fidelity evolution with the sophisticated control necessary to manipulate indivi… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Fundamental Relation between Conductance of Biomolecules and the Fukui Function arXiv:2607.13309v1 Announce Type: cross Abstract: The finite-temperature conductance of a molecule coupled to metallic leads is derived entirely within the framework of density functional theory (DFT) and its time-dependent extension for open quantum systems. Starting from the Mermin grand potential, the foundational Kohn-Sham equations, the Fukui function, and the open-system master equation f… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Dirac topology, anomalous Hall response, and giant magnetoresistance in carrier-compensated altermagnetic semimetal NiS arXiv:2607.13400v1 Announce Type: cross Abstract: We combine first-principles density-functional theory, Berry-curvature analysis, semiclassical Boltzmann transport, and atomistic spin dynamics to establish hexagonal NiS as a compensated 3d altermagnetic semimetal in which topology, magnetism, and lattice dynamics are intrinsically intertwined. The rotational coset symmetry of the NiAs lattice … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026 Research & science Imprinting topology on thermal light arXiv:2607.13542v1 Announce Type: cross Abstract: Topological structuring of light inevitably leverages on optical coherence to ensure that the imparted spatial phases are preserved, requiring highly coherent sources or coherence engineering embedded in the design. Now we show that thermal light can be spatially engineered to carry optical topologies in the form of Skyrmions. Such topologies ar… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 16 Jul 2026