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Van der Waals 2D magnetic materials are promising for spintronic devices due to their tunable large anomalous Hall and Nernst angles. Here, the magneto-transport properties of Fe3GaTe2 films are investigated under pressure, demonstrating a robust perpendicular magnetic anisotropy at room temperature and an enhancement of the anomalous Hall angle.
The charge-density wave state in AV3Sb5 kagome metals is intimately related to several unconventional and intriguing phenomena, but its origin and structure are still under debate. Here, non-perturbative calculations indicate a large electron-phonon coupling as the driving mechanism, attributing the melting of the charge-density wave state to ionic entropy and lattice anharmonicity.
Defect-free castings are vital to the structural integrity of superalloys used in aerospace. Here, a digital twin method is developed for modelling spurious grain formation and segregation channels in directionally solidified superalloys.
Drug delivery via solid oral dosage requires a controlled release rate and physical and chemical stability of the drug within the formulation. Here, X-ray tomography and spectromicroscopy reveal how the morphology of a phase-separated polymer blend controls drug release.
Biomimetic chemical logic gates transform in response to their environment but are currently focused on the microscopic properties. Here, a single crystal reset-set flip-flop circuit undergoes reversible volume shrinkage in response to ions in solution.
Peptide surfactants are useful in detergents, foods, and pharmaceutics but their design using a single heptad remains largely unexplored. Here, four heptad surfactants were designed that are responsive to metal ions and show good emulsification properties.
Temporomandibular joint prostheses have limitations in their translational movements that affect functionality and longevity. Here, a 3D-printed functionally graded artificial cartilage attached to the temporomandibular joint implant improves the mandibular kinematics and movement range.
Ta2V3.1Si0.9 is an interesting kagome superconductor with a record-high critical temperature of 7.5 K for kagome metals at ambient pressure. Here, muon spin rotation measurements reveal an unusual paramagnetic shift in response to external magnetic fields and an exceptionally dilute superfluid density despite the high TC, signalling the unconventional nature of superconductivity.
Nitrogen-vacancy centers in diamond offer a promising platform for quantum applications but their optical and spin properties can be hampered by imperfections of the host crystal. Here, nitrogen-vacancy centers are created in high-pressure high-temperature diamond of high crystalline quality, demonstrating a small inhomogeneous broadening of the spin and optical transitions.
Conventional superconducting flux qubits require a finely tuned magnetic field to operate, hindering their on-chip integration. Here, ferromagnetic Josephson junctions with a π-phase shift in the superconducting order parameter allow the realization of a flux qubit operating at zero magnetic field.
Hydrogen embrittlement is a major issue in alloys used in hydrogen-rich environments, such as in jet engines. In this study, the presence of a large number of dislocation cells in an additively manufactured nickel superalloy promotes hydrogen diffusion and fracture, as compared to a wrought alloy with fewer dislocation cells.
Bulk crystal growth of metal-organic frameworks remains a challenge. Here, a single crystal of a metal-organic framework is grown homoepitaxially in the centimeter range, assisted by the ionic nature of the anionic framework with cationic 1D molecular fillers.
Photodetectors for monitoring greenhouse gas emissions must cover the extended short-wavelength infrared range. Here, antimonide-based materials on a InP substrate enable a high-performance avalanche photodiode with detectivity beyond 2 µm wavelength.
Expanding the range of ultra-low-wear material systems would benefit a number of applications. Here, near-zero-wear is reported in a WB4-βB/WC tribo-pair system, attributed to surface self-repair in a certain wear regime.
The creep behavior of actively cooled alloys exposed to neutron irradiation in fusion reactors is expected to critically affect the operation of reactor components. Here, experiments and simulations of a 16 μm thick tungsten wire exposed to low-temperature irradiation reveal stress relaxation rates far exceeding those associated with thermal creep.
Open-circuit voltage loss is an issue faced by hole-conductor-free printable mesoscopic perovskite solar cells. Here, a facile decylammonium sulfate post-treatment reduces the voltage loss via an anion-cation synergy, and increases the power conversion efficiency from 17.8% to 19.6%.
Topological superconductors hosting Majorana zero modes are of great interest for both fundamental physics and potential quantum computing applications. Here, the intrinsic and Josephson junction transport properties of magnetic topological insulator MnBi2Te4 are investigated, revealing superconducting interference patterns that suggest the presence of supercurrent through quasi-helical edge states.
Designing heterogeneous catalysts with modulated microenvironments is important for optimum performance. Here, cobalt sub-nanoclusters with Co-O and Co-Co bonds show multiple oxidation and metallic states for propane dehydrogenation.
Cross-linked polymers must maintain physical and chemical properties after recycling to improve sustainability. Here, tuning the curing process to favour a reversible cross-linked network using disulfides and polysulfides bonds retains mechanical performance.
Microfluidic synthesis is an important protocol in multiple synthetic and industrial processes. Here, the influence of key synthetic parameters on the microfluidic synthesis of Zeolitic Imidazolate Frameworks is evaluated, with recommendations given for reproducible synthesis.