Research & science

Research & science Remote Work and Women's Labor Supply: The New Gender Division at Home arXiv:2508.08184v4 Announce Type: replace Abstract: We study how increases in remote work opportunities for men affect their spouses' labor supply. Exploiting large variation in work-from-home (WFH) exposure across occupations before and after the COVID-19 pandemic, we find that increases in men's WFH exposure led to sizable improvements in their wives' intensive-margin labor market outcomes. F… arXiv — econ.GN (General Economics preprints) · 20 Jul 2026 Research & science Conditional Disclosure as a Coordination Device arXiv:2604.00874v3 Announce Type: replace Abstract: People with controversial views may stay silent rather than speak out alone, though in a large enough group they could speak safely together. A social assurance contract makes disclosure conditional: signed commitments of support stay private until enough people have signed for it to be safe to publish. In contrast, a survey can measure hidden… arXiv — econ.GN (General Economics preprints) · 20 Jul 2026 Research & science Night and Day: Diurnal Warming and Structural Transformation in India arXiv:2607.00279v3 Announce Type: replace Abstract: This paper finds diverging partial effects of diurnal warming (higher nighttime and daytime temperatures) on agricultural wage-labour shares from decadal Indian Censuses (1981-2011). Though both margins contract grain output and cultivated area, only higher maxima raise harvest prices locally, consistent with a model where warmer nights shock … arXiv — econ.GN (General Economics preprints) · 20 Jul 2026 Research & science Failure Privacy and Safe Collective Expression with Social Assurance Contracts arXiv:2607.05802v2 Announce Type: replace Abstract: Controversial views sometimes remain unspoken because they invite retaliation. However, a sufficiently large group could speak safely if only they spoke together. Speaking one-by-one may encourage others, but retaliation against early participants can stop the cascade before a protective group forms. A social assurance contract privately colle… arXiv — econ.GN (General Economics preprints) · 20 Jul 2026 Research & science Tax reform as a constrained optimization problem: a piecewise-linear framework and software implementation arXiv:2508.03708v4 Announce Type: replace-cross Abstract: In many countries, income tax codes have grown into a complex tangle of interacting brackets, benefits, and deductions. Despite widespread calls for systematic reform, successful attempts at reform are rare. Part of the problem is the difficulty of designing viable reform proposals. Politically viable reform must offer hard guarantees on… arXiv — econ.GN (General Economics preprints) · 20 Jul 2026 Research & science Spontaneous Nanopatterning and Strain Relaxation in SiGe Layers Grown by Oxidative Solid Phase Epitaxy arXiv:2607.15332v1 Announce Type: new Abstract: The wafer-scale monolithic integration of III-V materials on Si would lead to revolutionary optoelectronic hardware for data, computing and other applications. However, heteroepitaxy of III-Vs on Si requires overcoming the large lattice and thermal mismatches between the materials and reducing threading dislocations densities. In this work, we exp… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Phase-Field Simulation of Dendrite Evolution in All-Solid-State Sodium Batteries during Cycling arXiv:2607.15387v1 Announce Type: new Abstract: Dendrite growth during cycling remains a critical challenge for all-solid-state batteries (SSBs), limiting the full realization of their inherent safety and high energy density. In particular, the mechanisms of continuous dendrite penetration during charge-discharge cycling remain poorly understood and are difficult to characterize experimentally.… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Ab initio time-dependent GW approach for nonequilibrium exciton-phonon coupled dynamics across momentum space arXiv:2607.15411v1 Announce Type: new Abstract: The dynamics of optical excitations in materials generally involves intertwined electron-hole (e-h) and electron-phonon (e-ph) interactions out of equilibrium. However, a full theoretical description of such nonequilibrium dynamics requires a systematic treatment of the coherent excitonic excitations and exciton-phonon interactions across the enti… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science exa-PD: A scalable high-performance workflow for multi-element phase diagram construction arXiv:2607.15476v1 Announce Type: new Abstract: Exa-PD is a highly parallelizable workflow designed for the construction of multi-element phase diagrams (PDs). It uses standard sampling techniques, molecular dynamics (MD) and Monte Carlo (MC) as implemented in the LAMMPS package, to simultaneously sample multiple phases over a fine temperature-composition mesh for free-energy calculations. Pars… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Exploring the Potential of BY3 (Y = P, As) Monolayers as High-Capacity and Rapid-Diffusion Anodes for Sodium-Ion Batteries arXiv:2607.15514v1 Announce Type: new Abstract: The rapid advancement of sodium-ion batteries (SIBs) demands robust anode materials capable of delivering high specific capacities while maintaining rapid ion transport kinetics. In this work, we employ first-principles density functional theory (DFT) to systematically evaluate the two-dimensional BX3 (X = As, P) monolayers as high-performance ano… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Symbolic Predicate-Guided Language Agents for Inverse Design of Perovskite Oxides arXiv:2607.15535v1 Announce Type: new Abstract: Efficient discovery of high-performance materials has been pursued through a variety of data- and AI-driven strategies, among which inverse design, generating materials from desired target properties, has emerged as an important paradigm. Large language models (LLMs) offer a complementary route for inverse materials design because their reasoning … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Terahertz Time-Domain Spectroscopy as a Universal Defect Fingerprinting Tool for Organic Halide Perovskite Solar Cells arXiv:2607.15538v1 Announce Type: new Abstract: Organic-inorganic hybrid perovskites (OHPs) deliver certified single-junction power conversion efficiencies (PCEs) exceeding 26% and perovskite-silicon tandem values surpassing 34%, yet a substantial gap with the Shockley-Queisser (S-Q) limit persists-primarily due to grain-boundary (GB) defects that drive non-radiative recombination, ion migratio… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Symmetry-Enforced Dirac Fermions and Structural Metastability in Pentagonal Monolayers of Transition-Metal Ditellurides arXiv:2607.15580v1 Announce Type: new Abstract: The recent synthesis of pentagonal PdTe$_2$ monolayer motivates broader research interests in transition-metal ditellurides whose electronic phases are governed by symmetry and structural reconstruction. The pentagonal phase of transition-metal ditellurides exhibits electronic properties that are dramatically different from those of its hexagonal … arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science General and scalable vapor etching and transformation platform for two-dimensional materials arXiv:2607.15581v1 Announce Type: new Abstract: Two-dimensional (2D) nanomaterials derived from non-van der Waals (non-vdW) solids offer exceptional physicochemical properties, yet their synthesis is impeded by intrinsic covalent/metallic bonding and high surface reactivity of the precursors. Here, we report a general vapor-phase etching and transformation platform for producing a library of 36… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Interface-Engineered Giant Multistate Resistance Switching in Altermagnetic CrSb Multiferroic Tunnel Junctions arXiv:2607.15728v1 Announce Type: new Abstract: Altermagnets enable spin-split transport without stray magnetic fields, yet converting their momentum-dependent spin splitting into a strong tunnel-junction response requires interface-selected tunneling channels. Here, using density functional theory combined with nonequilibrium Green's function calculations, we demonstrate giant multistate resis… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Two-step growth of (In,Ga)N pseudo-substrates on GaN templates by plasma-assisted molecular beam epitaxy arXiv:2607.15748v1 Announce Type: new Abstract: (In,Ga)N layers are grown by plasma-assisted molecular beam epitaxy on GaN templates. We introduce a two-step protocol that involves switching the growth conditions from initially N-stable to metal-stable. Reflection high-energy electron diffraction as well as scanning electron and atomic force microscopy reveal that the first step results in a ro… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Nonuniform pressure helps structural superlubricity arXiv:2607.15967v1 Announce Type: new Abstract: Structural superlubricity, nearly vanishing friction between two structurally incommensurate crystalline surfaces, is a promising avenue for reducing friction in applications, but requires very specific and well-controlled conditions. One of those conditions is perfectly uniform atomically flat surfaces. Real-world surfaces are generally rough, le… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Structural Relaxation Enables Millisecond Infrared Photodetection in Selenium Iodine Semiconductors arXiv:2607.16054v1 Announce Type: new Abstract: The optoelectronic performance of amorphous and partially crystalline semiconductors is strongly governed by structural disorder, yet establishing direct correlations between structural evolution and carrier transport remains challenging. Here, we show that the solid state optoelectronic response of selenium iodine (SeI2) is dictated by its transf… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Emergent Interfacial Magnetism in Epitaxial RuO$_2$ arXiv:2607.16093v1 Announce Type: new Abstract: The magnetic ground state of the altermagnet candidate RuO$_2$ remains controversial, with magnetic signatures observed mainly in epitaxial films. Here we show, using first-principles calculations, that magnetism in epitaxial RuO$_2$ can emerge as an interfacial boundary phase at TiO$_2$/RuO$_2$ interfaces. While TiO$_2$-induced epitaxial strain a… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Subgrain-resolved Analysis of Degradation in Cu Metallization via Scanning 3DXRD and Thermomechanical Modeling arXiv:2607.16108v1 Announce Type: new Abstract: Metallization layers play a key role in the performance and reliability of modern power semiconductor devices. During short-circuit events, rapid heating of power metallization layers induces thermomechanical incompatibility stresses, which may contribute to material degradation and impact device performance. In this work, potential degradation ho… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Atomistic mechanism of corrosion-induced grain boundary migration in NiCr alloys in molten FLiNaK arXiv:2607.16167v1 Announce Type: new Abstract: Corrosion of Ni-Cr structural alloys in molten fluoride salts is a persistent material degradation problem, yet the atomistic role of grain boundaries in this process remains poorly understood. Here we use reactive molecular dynamics to investigate corrosion of NiCr alloys in molten FLiNaK across four representative grain boundaries ($\Sigma3(111)… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science A Dynamical Phase-Field Model for the Optical Properties of Ferroelectrics arXiv:2607.16180v1 Announce Type: new Abstract: Ferroelectric materials are promising platforms for controllable photonic devices because of the strong coupling between their spontaneous polarization and optical properties. Yet, these materials remain challenging to design because of the close connection between the ferroelectric domain structure and optical response, which no existing theoreti… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Thermo-elastic properties of hydrated epoxy-graphene nanocomposites from ensemble-based molecular dynamics simulations arXiv:2607.15301v1 Announce Type: cross Abstract: Epoxy-based materials are inherently hygroscopic, absorbing moisture from the environment, which can significantly alter their short and long-term performance. The presence of graphene is often considered as a potential candidate to act as a microscopic barrier, mitigating the adverse effects of hydration on the matrix. This study investigates t… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Field-induced first order transitions and phase coexistence in the Kitaev quantum spin liquid candidate BaCo2(AsO4)2 arXiv:2607.15346v1 Announce Type: cross Abstract: BaCo2(AsO4)2 (BCAO) is an insulating Kitaev quantum spin liquid candidate with a rich low-temperature phase diagram. Below 5 K, it exhibits double-zigzag magnetic order. Upon application of an in-plane magnetic field, the magnetic structure first transforms into an up-up-down (UUD) state near 0.12 T and then enters a fully spin-polarized ferroma… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Hot-Carrier Distribution Spectroscopy by Transconductance in Two-Dimensional Field-Effect Transistors arXiv:2607.15578v1 Announce Type: cross Abstract: The transconductance $g_m = dI_D/dV_G$ of a field-effect transistor (FET) is conventionally read as a proxy for carrier density. We show that it is instead a spectroscopic probe of the carrier distribution: because $g_m$ weights the spectral current $j(E)$ by the gate-voltage derivative $\partial f(E)/\partial V_G$ and integrates over energy, it… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Einstein crystals in Snyder and Snyder-de Sitter noncommutative backgrounds arXiv:2607.15760v1 Announce Type: cross Abstract: We investigate the behavior of Einstein crystals in noncommutative backgrounds described by the Snyder and Snyder-de Sitter models. Possible novel effects, which may arise in realistic systems such as diamond crystals, are analyzed within a thermodynamical framework. We show that noncommutativity influences the key thermodynamic quantities, incl… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Electrothermal control of spin-reorientation transition in Co/Fe_3GaTe_2 heterostructures arXiv:2607.15844v1 Announce Type: cross Abstract: Electrical control of magnetic anisotropy in van der Waals (vdWs) magnets is a key step toward reconfigurable two-dimensional spintronics, yet how a conventional metallic ferromagnet competes with a van der Waals magnet across a direct interface has remained largely unexplored. Here we demonstrate reversible thermal and electrothermal control of… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Property-dependent material times arXiv:2607.15920v1 Announce Type: cross Abstract: We analyze simulations of physical aging following large temperature up-jumps from equilibrated, slowly relaxing states. Specifically, we consider up-jumps from temperatures T=0.43 and T=0.37 to T=0.48 in a binary Lennard-Jones mixture. The Tool-Narayanaswamy (TN) concept of a universal material time was recently shown to become less effective i… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Inelastic Constitutive Kolmogorov-Arnold Networks: A generalized framework for automated discovery of interpretable inelastic material models arXiv:2602.17750v3 Announce Type: replace Abstract: A key problem of solid mechanics is the identification of the constitutive law of a material, that is, the relation between strain history and stress. Machine learning has lead to considerable advances in this field lately. Here we introduce inelastic Constitutive Kolmogorov-Arnold Networks (iCKANs). This novel artificial neural network archit… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Machine Learning for Electrode Materials: Property Prediction via Composition arXiv:2603.07805v3 Announce Type: replace Abstract: In this work, we benchmark three leading composition based Machine Learning (ML) frameworks, MODNet, CrabNet, and a random forest model based on Magpie features, predicting the properties of battery electrode materials using the Materials Project Battery Explorer dataset. We evaluate these models based on predictive accuracy, visualize numeric… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Chirality Cannot Be Ferroic in Enantiomorphic Space-Groups arXiv:2603.22501v2 Announce Type: replace Abstract: With growing interest in structural chirality in periodic solids, it has been suggested that chirality might constitute a new ferroic order parameter. In this work, we demonstrate, by means of a formal group-theoretical proof and a systematic group-subgroup analysis, that achiral-to-chiral transitions that produce either member of an enantiomo… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Unified ab initio quantum-electrodynamical density-functional theory for cavity-modified electron-phonon-photon coupling in solids arXiv:2603.24095v2 Announce Type: replace Abstract: Quantum-electrodynamical density-functional theory (QEDFT) provides a first-principles framework for describing materials coupled to quantized electromagnetic fields. While QEDFT has successfully captured cavity-induced modifications of electronic structures in atoms and molecules, a fully self-consistent and accurate framework to simulate and… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Self-consistent evaluation of the Berry connection for Wannier functions arXiv:2604.21660v3 Announce Type: replace Abstract: The Berry connection is a gauge-dependent quantity frequently used to describe the optical response of solids. Its evaluation requires a k-derivative with respect to the cell periodic-part of the Bloch-functions and is commonly calculated in the Wannier basis by using overlap matrices of cell-periodic parts of Bloch-functions at neighboring k-… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science High temperature Jahn-Teller distortion and short-range order in CsCuCl$_3$ arXiv:2605.28288v2 Announce Type: replace Abstract: CsCuCl$_3$, chiral and Jahn-Teller distorted at room temperature, takes a more symmetric structure above 423 K. Describing this 'simpler' high temperature structure is far from simple and has been the subject of many, sometimes contradicting, studies. Here we reinvestigate the high temperature structure of CsCuCl$_3$, its thermal stability, an… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Fracture energy of 6H-SiC at the microscale: effects of testing geometry and notch preparation arXiv:2606.03818v2 Announce Type: replace Abstract: Micromechanical testing enables small-scale fracture energy measurements, but values depend strongly on geometry and specimen preparation. Here, the fracture energy of the single-crystal 6H-SiC {10-10} plane was measured using microscale double cantilever beam (DCB) and single cantilever beam (SCB) geometries. DCBs showed stable crack growth u… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Hydrogen-induced lattice cohesion weakening favors atomic displacement arXiv:2606.05325v2 Announce Type: replace Abstract: Atomic displacement -- the fundamental process underlying diverse deformation and damage phenomena in metals, from irradiation defect production to stress-driven dislocation motion -- is governed by interatomic cohesion strength. Here, lattice-dissolved hydrogen (LDH) occurring in metals under direct hydrogen exposure is identified to effectiv… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Surface-Sensitive Mapping of Anisotropic Phonon Cascades in T$_{d}$-WTe$_{2}$ arXiv:2606.15853v2 Announce Type: replace Abstract: Understanding how energy flows from photoexcited carriers into the lattice is essential for describing nonequilibrium phenomena in low-symmetry quantum materials. Here, we use ultrafast low-energy electron diffraction and diffuse scattering to probe momentum-resolved phonon dynamics at the surface of T$_d$-WTe$_2$, a strongly anisotropic semim… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Large spin splitting at ferromagnetic surfaces of bulk antiferromagnets arXiv:2606.20178v3 Announce Type: replace Abstract: We use density functional theory and model Hamiltonians to reveal large spin splitting of bands localized at ferromagnetic surfaces of bulk antiferromagnets (AFMs). There is great interest in material platforms combining the robustness and ultrafast dynamics of AFMs with large, functional spin splitting which is often restricted to ferromagnet… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Harnessing electrostatics through temperature modulations to control ferroelectrics arXiv:2606.25850v2 Announce Type: replace Abstract: Temperature modulations provide an alternative method for dynamically controlling the ferroelectric state. In this paper, we use scale-independent Landau potentials and predictive atomistic simulations to explore how temperature modulation can harness the depolarizing field to obtain non-electrical poling. We further predict that temperature g… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026 Research & science Inverse heterodyne effect in bimodal Kelvin probe force microscopy arXiv:2607.06135v2 Announce Type: replace Abstract: Heterodyne Kelvin probe force microscopy (He-KPFM) enables high-sensitivity electrostatic measurements by converting a bias-modulated interaction into a resonant response at a higher cantilever eigenmode. While the "direct" heterodyne actuation of the second eigenmode is well established, the dynamical back-action of this heterodyne-driven mot… arXiv — cond-mat.mtrl-sci (Materials Science preprints) · 20 Jul 2026