Materials Literature
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The surface states of a topological insulator in a fine-tuned magnetic field are ideal candidates for realizing a topological metal which is protected against disorder. Its signatures are (i) a conductance plateau in long wires in a finely tuned longitudinal magnetic field and (ii) a conductivity which always increase…
Tissue integrity in the face of external physical forces requires the production of a strong extracellular matrix (ECM) composed primarily of the protein collagen. Tendons and the heart both withstand large and changing physical forces, and emerging evidence suggests that the transcription factor scleraxis plays a cen…
Lubricants are important components of almost all air conditioning and refrigeration systems. Their primary function is to lubricate the compressor, provide sealing of clearances between low and high pressure sides of the compressor and remove frictional heat. But the lubricant is in contact with refrigerant at all ti…
Abstract This study demonstrates the hybrid structure with high lumen efficiency and uniform angular-dependent correlated color temperature (CCT) for warm white LED. Compared to the conventional structures, the hybrid structure combines the advantage of the two different fabrication methods including dispense and puls…
The plasma confinement between the electrodes in direct current magnetron sputtering has been investigated by using the two-dimensional hybrid model. We have quantitatively clarified plasma behavior for different magnetic fields and anode structures. The results show that plasma can be confined in the space near the s…
To improve their overall performance, fast-growing poplar logs were modified by impregnation with a melamine-urea-formaldehyde (MUF) prepolymer. The results showed that density, dimensional stability, and mechanical properties of fast-growing poplar were markedly improved. The vertical density profile curves confirmed…
Key to future spintronics and spin-based information processing technologies is the generation, manipulation, and detection of spin polarization in a solid state platform. Here, we theoretically explore an alternative route to spin injection via the use of dynamically polarized nitrogen-vacancy (NV) centers in diamond…
In the present study, we demonstrate the effect of vacancy evolution on high-pure metallic single-walled carbon nanotube (m-SWCNT) networks by observing the electrical characteristics of the networks on the field-effect transistor (FET). By catalytic oxidation using Co catalyst, vacancy evolution was gradually realize…
Negligible overpotential for HER: The front cover artwork was chosen to represent a 3D Ni–Mo electrocatalyst with negligible overpotential for the alkaline hydrogen evolution reaction (HER). The 3D nanoporous Ni–Mo electrocatalyst was fabricated and investigated for alkaline HER. On page 1138, Prof. P. B. Wan et al. s…
Nanocrystalline silicon carbide (nc-SiC) is an interesting material for electronics applications, both in its own right and as a host matrix for silicon quantum dots. When synthesized by annealing of a-SiC:H on Si substrates, interdiffusion of dopants occurs if either the a-SiC:H or the Si substrate is doped. Annealin…
High performance 365 nm vertical-type ultraviolet light-emitting diodes (LEDs) are demonstrated by the insertion of a self-textured oxide mask (STOM) structure using metal-organic chemical vapor deposition. The dislocation densities were reduced significantly via the STOM by the observation of the transmission electro…
A two-dimensional (2-D) photonic quasicrystal (PQC) flat lens with three scatterers is proposed, and its focusing characteristics for a point source are analyzed for the case of a continuously changing scatterer radius. The results show that a super-lens can be formed by three scatterers, and there is a threshold for…
We propose and construct a numerical algorithm to calculate the Berry conductivity in topological band insulators. The method is applicable to cold atom systems as well as solid state setups, both for the insulating case where the Fermi energy lies in the gap between two bulk bands as well as in the metallic regime. T…
Cationic polythiophene derivatives have been used as unique optical probes for various biosensing applications with great success, because their optical responses are sensitive to the conformational changes from binding to single-stranded DNA (ssDNA) to binding to double-stranded DNA (dsDNA). It has long been suggeste…
The reaction of the cyclic peroxides cyclobutane malonoyl peroxide and cyclopentane malonoyl peroxide to dimethylplatinum(II) complexes with the bidentate nitrogen donor ligand 4,4′-di-t-butyl-2,2′-bipyridine (bubpy) gave a mixture of the products of cis and trans oxidative addition, [PtMe2{(O2C)2C(C3H6)}(bubpy)] and…
In nanotechnology, polymers play a very important role as one of most often employed materials, especially in the fields of nanofibers and nanocomposites. Hundreds of polymers, including natural and synthetic polymers, have been fabricated into nanofibers and nanocomposites in the past 20 years. Thus a fundamental und…
The separation performances, in terms of adsorption selectivity, desorption, and regeneration of an innovative hyper-cross-linked resin (HD-02) for recovery of acetoin from the ethanol–acetoin–acetic acid ternary mixture were explored in this work. The competitive adsorption behaviors of the ternary mixture were deter…
A graph is called Laplacian integral if all its Laplacian eigenvalues are integers. In this paper, we give an edge subdividing theorem for Laplacian eigenvalues of a graph (Theorem 2.1) and characterize a class of k-cyclic graphs whose algebraic connectivity is less than one. Using these results, we determine all the…
Low-permittivity ceramics for use as microwave band window materials must have good mechanical and optical characteristics. Unfortunately, most known ceramics are opaque to microwaves because of their high dielectric permittivity. Here, we present an effective theoretical method that may be helpful in the development…
We review a calculation of the quantum corrections to electrical transport in graphene, using the trajectory-based semiclassical method.Compared to conventional metals, for graphene the semiclassical propagator contains an additional pseudospin structure that influences the results for weak localization, and interacti…