Materials Literature
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Abstract This study investigates the structural, electronic, and magnetic properties of Mn-substituted La₀.₆Ga₀.₄Fe₁₋ₓMnₓO₃ (0 ≤ x ≤ 0.3) perovskites synthesized by solid-state reaction. X-ray diffraction confirms a single-phase orthorhombic structure (Pnma), with Mn substitution inducing anisotropic lattice distortio…
Abstract Polyoxometalates (POMs) are promising antiviral agents, yet systematic structure–activity relationships remain scarce and biological stability is rarely assessed. Here we report the antiviral activity, cytotoxicity, and solution speciation of 11 Keggin-type POMs spanning three compositional series─PVxW12–x, P…
Polystyrene (PS) thermal degradation involves localized molecular bond-cleavage events that are not directly equivalent to the apparent kinetic parameters obtained from bulk thermal analysis. In this study, a finite hydrogen-terminated PS oligomeric model was examined using density functional theory at the M06-2X/LANL…
We investigated Raman spectral features of calcite associated with natural oxygen isotope substitution in the CO 3 2− ion. Weak bands were observed at 1075 cm −1 and 1065 cm −1 on the lower-wavenumber side of the main ν 1 ( A 1 g ) band at 1086 cm −1 . Density functional theory (DFT) calculations of isolated CO 3 2− i…
Abstract Precision resection remains the definitive treatment for drug-resistant epilepsy, yet intraoperative demarcation of epileptic foci is hindered by the lack of rapid molecular imaging. Herein, we report a rapid, artificial intelligence (AI)-accelerated surface-enhanced Raman scattering (SERS) platform for the s…
DRAM capacitor dielectrics face a hard leakage×EOT scaling constraint below the 1z-nm node (IMW 2020); for 30 years industry has responded by doping-pinning the tetragonal phase of high-k dielectrics (ZrO₂/HfO₂-based) to stabilize it—yet this long-standing practice lacks a unified criterion language. Using a field-the…
Silver nanostructured films are fabricated on the surface of 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid via a modified liquid-phase chemical vapor deposition approach, yielding highly uniform and reproducible surface-enhanced Raman scattering (SERS) substrates with excellent sensing sensitivity. Benefi…
The effective mass m_star of charge carriers in strongly correlated electron systems is a central parameter governing their thermodynamic, transport, and magnetic behavior. Traditionally, m_star is considered a smoothly varying function of external control parameters such as pressure, doping, or magnetic field. In thi…
Natural water-repellent surfaces use hierarchical texture and low surface energy to minimize liquid adhesion, and this principle has inspired engineered superhydrophobic surfaces for passive anti-icing. However, whether such bioinspired water-repellent architectures remain beneficial during freezing and ice detachment…
Abstract Silicon clusters are prototype building blocks of nanoscale silicon materials, linking molecular chemistry with bulk semiconductor properties that underpin optoelectronics and quantum technologies. Herein, we revisit medium-sized silicon clusters through a workflow that combines machine-learned interatomic po…
Effective mass m* is a central parameter in the description of quasiparticles in solid state systems. In conventional band theory, m* varies smoothly with external tuning parameters such as pressure, doping or magnetic field. However, in strongly correlated materials the electronic self‑energy can develop non‑analytic…
تحلیل بنیادین، بازنویسی تانسوری و اثبات جامعِ کامل سازوکار بازیابی در مواد هوشمند خودترمیمشونده (Mechanism of Autonomic Recovery in Self-Healing Soft Materials) در بستر فیزیک اطلاعات حمزه (HIP-1155) به شرح زیر است: ۱. مقدمه و پارادوکس خودترمیمشوندگی در ماده چگال نرم در فیزیک پلیمرها و ماده چگال نرم، پدیده «خودترمیم…
In conventional descriptions of electronic phases, condensation phenomena are almost exclusively tied to real‑space order parameters, such as charge density waves or magnetic order. Here we introduce a new paradigm – directional electron condensation (DEC) – in which electrons condense not in real space but along spec…
Isotopic substitution is one of the few strictly mass-like perturbations available in a crystal: within the Born–Oppenheimer approximation the interatomic force constants are invariant under isotope exchange, so an isotope pattern modifies the dynamical matrix through the mass factors alone. This makes the spatial arr…
Tire wear nanoparticles (TWPs) pose an emerging environmental concern in agricultural systems. In this study, TWPs were characterized using dynamic light scattering, Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy/energy-dispersive X-ray spectroscopy, revealing predominantl…
Antimicrobial resistance and the limitations of conventional antimicrobial therapies have intensified the search for multifunctional nanoscale agents. Plant flowers are effective and sustainable biological materials for the eco-friendly synthesis of stable nanoparticles. In this study, Ocimum basilicum flower (OBF) ex…
By projecting the 240 E8 root vectors onto a sexagesimal (base‑60) grid, the 60 tetrahedral clusters each generate a centroid frequency of 132 Hz·φⁿ, forming a coherent phi‑harmonic time‑crystalline lattice. This lattice naturally resonates with the 3600‑year Nibiru cycle, providing a geometric clock that indexes any…
The 4f orbitals of lanthanides are shielded by filled 5s 2 5p 6 subshells, so that lanthanide–ligand bonding is often dominated by electrostatic interactions. Random forest models built from 31 composition-based descriptors, without any three-dimensional coordinates, predict the HOMO energies of 17,269 lanthanide comp…
Magnetopolymeric nanocomposites represent promising platforms for advanced nanomedicine due to their ability to combine magnetic responsiveness with polymer-mediated biological functionality. In this study, a hybrid nanocomposite system based on maghemite (Mh), poly(ethyl cyanoacrylate) (PECA), and chitosan (Cs) was d…
This study investigated the development of biopolymer films from bitter cassava starch (Manihot esculenta) and coconut mesocarp cellulose as a promising alternative for biodegradable packaging. The biopolymer film was prepared using the casting method, with glycerol as a plasticiser and Tween 80 as an emulsifier. Diff…