Materials Literature
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Abstract BACKGROUND Due to cellulose of paper is abundant, inexpensive and renewable in nature, the development of paper‐based materials from cellulose to substitute materials prepared by complicated chemical routes is a fascinating challenge. This work investigates a novel method for fabricating paper‐based Ni‐Al lay…
Diamond-like carbon (DLC) films, which are an amorphous carbonaceous allotrope composed of sp 2 carbon, sp 3 carbon, and hydrogen, were prepared by photoemission-assisted plasma-enhanced chemical vapor deposition (PA-PECVD). The electrical behavior during film growth monotonically depended on the methane source gas co…
The exciton dynamics in semiconductor nanocrystals can be strongly affected by coupling the nanocrystals to organic ligands. A deeper understanding of the interactions in semiconductor–organic hybrid systems is important for the design of functional devices. In the present work, the interactions between CdS quantum do…
ABSTRACT A novel double‐nozzle air‐jet electrospinning apparatus was developed to fabricate nanofibers on a large scale. The distribution of the electric field at different nozzle distances was simulated to analyze the jet path, productivity, and deposition area of nanofiber webs and the nanofiber morphology. Our expe…
Magnetic multilayers consisting of itinerant ferromagnetic SrRuO 3 (SRO) and antiferromagnetic NiO were pulse-laser deposited on (0 0 1) SrTiO 3 substrates. After small-field cooling, enhancements from both the unconventional exchange bias (EB) and the large coercive field were observed in the multilayers. Coercivity…
Directional migration of cells in vitro can mimic corresponding biological events in vivo, which provides a way to determine the cascade responses in the tissue regeneration process and develop novel criteria for the design of tissue-inductive biomaterials. In this work, a density gradient of methoxy poly(ethylene gly…
By means of space-group symmetry arguments, we argue that the electronic pairing in iron-based high-temperature superconductors shows a structure which is a linear combination of planar $s$-wave and $d$-wave symmetry channels, both preserving the three-dimensional ${A}_{1g}$ irreducible representation of the correspon…
Magnesium and its alloys have been suggested as potential absorbable implant materials due to their excellent biodegradability and biocompatibility. Current researchers focus on reducing the rapid corrosion rate of Mg and its alloys by alloying and surface modification. To improve the corrosion resistance, pure Mg is…
In this paper, we studied the synergistic effect of sodium citrate dispersant and polyvinylpyrrolidone or polyvinylalcol capping polymer on controlling the size of copper nanoparticles (CuNPs) that were prepared by the chemical reduction method. The CuNPs were characterised by using ultraviolet–visible (UV–Vis) spectr…
The low frequency 1/f noise in graphene devices was studied in a transverse magnetic field of up to B = 14 T at temperatures T = 80 K and T = 285 K. The examined devices revealed a large physical magnetoresistance typical for graphene. At low magnetic fields (B < 2 T), the level of 1/f noise decreases with the…
Simulations of surface chemistry often use density functional theory with generalized gradient approximations (GGAs) for the exchange-correlation functional. GGAs have well-known limitations for gas-phase chemistry, including underestimated reaction barriers, and are largely superseded by meta-GGAs and hybrids. Our si…
ABSTRACT The possibility to obtain biodegradable high molecular weight aliphatic polycarbonates from trimethylene carbonate (TMC) and 2,2‐dimethyltrimethylene carbonate (DTC) monomers with designed composition of comonomeric units was presented. Zinc(II) acetylacetonate monohydrate was used as a catalyst. A detailed a…
The critical magnetic behavior of the colossal magnetocapacitive spinel CdCr${}_{2}$S${}_{4}$ is revisited. Magnetization and susceptibility of single-crystalline samples measured in the temperature range 68--120 K were analyzed by the kink-point method, the modified Arrott plots, the Kouvel-Fisher method, ln $M$ vers…
We present a simple, yet versatile strategy for the fabrication of uniform biodegradable polymer nanoparticles (NPs) with controllable sizes by a hand-driven membrane-extrusion emulsification approach. The size and size distribution of the NPs can be easily tuned by varying the experimental parameters, including initi…
The position-dependent oxygen vacancy dynamics induced by a biased scanning probe microscopy tip in Samarium doped ceria thin films grown on MgO (100) substrates is investigated. The granularity of the samples gives rise to spatially dependent local electrochemical activity, as explored by electrochemical strain micro…
The background noise in solar-blind ultraviolet (UV) detectors from the solar-irradiance leakage photons has been compared with the detector noise from the dark current. It has been found that the background noise is the deterministic limiting factor in solar-blind UV photodetection. The detector performance of backgr…
Temperature-dependent microrheology of a concentrated charge-stabilized poly(methyl methacrylate) colloidal dispersion with different salt concentrations was investigated by diffusing wave spectroscopy in backscattering mode. The critical temperature where the system undergoes aggregation and gelation depends upon the…
NdNiO3 (NNO) films were grown by pulsed laser deposition on orthorhombic (110)-, (001)-, and (100)-oriented NdGaO3 substrates. It is found that all the films are tensile-strained but show dramatically different metal-insulator transition (MIT) temperatures (TMI) (160–280 K), as compared with the NNO bulk (∼200 K). A h…
This study evaluated the potential of two goat types (hairy and cashmere) for quality and quantity of skin and leather production. Goat skins (200: males n = 80, and females n = 120) of two age groups (<1 year, n = 80; and 1–5 years, n = 120) representing two genotypes (hairy and cashmere) were used. There were…
NiS, exhibiting a text-book example of a first-order transition with many unusual properties at low temperatures, has been variously described in terms of conflicting descriptions of its ground state during the past several decades. We calculate these physical properties within first-principle approaches based on the…