Materials Literature
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We investigate the transport properties of different realizations of one-dimensional quantum wires coupled to a number of external electrodes in terms of the full counting statistics. Focusing on the setups in which edge states of Majorana type are realizable, we analyze the effects of the exchange of charge carriers…
Circular dichorism and optical activity have been achieved by chiral metamaterials in the optical spectrum, but for the case of negative index of refraction, remarkable achievements have not been obtained in this region so far. We employ nanoparticles to shift the resonant frequency of a chiral metamaterial based on t…
This paper reports the properties of chitosan (CS) reinforced with varying weight percentage of hydroxyapatite (HA) particles with respect to physical and chemical properties. Coprecipitation process of calcium nitrate tetrahydrate and phosphoric acid followed by microwave irradiation was used to synthesize nanosize r…
Superabsorbent polymers based on ubiquitous agricultural residues: sugarcane, water hyacinth, rice straw, coconut shell and palm fruit bunch substrates, were successfully synthesized. Gamma radiation from Co-60 was employed to graft acrylic acid (AA) onto the substrates. Rice straw exhibited the highest equilibrium sw…
Abstract Type 2 diabetes (T2D) affects over 300 million people worldwide. The main component, found in the pancreas of 95 % of T2D patients, is amylin oligomers and fibrils. So far, four different molecular structures of the self‐assembled amylin oligomers have been observed experimentally: two ssNMR models and two cr…
High-index dielectric and semiconductor nanostructures with characteristics of low absorption loss and artificially controlled scattering properties have grasped an increasing attention for improving the performance of thin-film photovoltaic devices. In this work, combined optical and electrical simulations were perfo…
Two sets of HfO2 thin film have been deposited by the radio frequency magnetron sputtering technique at various oxygen partial pressures, one set without any substrate bias and another set with a 50 W pulsed dc substrate bias. The films have been characterized by extended x-ray absorption fine structure (EXAFS) measur…
We build an effective impedance for two-dimensional (2D) photonic crystals (PCs) comprising a rectangular lattice of dielectric cylinders with the incident electric field polarized along the axis of the cylinders. In particular, we discuss the feasibility of constructing an effective impedance for the case where the B…
Performance of 4D radiation treatment planning using Monte Carlo simulation on the cloud was evaluated with optimizations based on the number of compute nodes, number of computed tomography (CT) image sets and dose reconstruction time. The dose distr
Abstract Gallium nitride (GaN) is generally considered a good candidate for power electronic devices such as Schottky barrier diodes (SBDs). Nevertheless, GaN has a strong sensitivity to high temperature treatments and a cap-layer is mandatory to protect the material surface during annealing at high temperature such a…
Chapter 2
If the size of a metallic structure is reduced to be comparable to or even smaller than the typical quantum-mechanical lengths such as the Fermi wavelength or Thomas-Fermi wavelength, the electronic structure and optical responses are modulated by quantum effects. Here, we calculate the optical responses of a metal wi…
Mn2CrGa in the disordered cubic structure has been synthesized using rapid quenching and subsequent annealing. The cubic phase transforms to a stable tetragonal phase when a fraction of Cr or Ga is replaced by Pt or Al, respectively. All samples are ferrimagnetic with high Curie temperatures (Tc); Mn2CrGa exhibits the…
The (0001) surface of ${\mathrm{Bi}}_{2}{\mathrm{Te}}_{3}$ is readily exposed by cleavage between two van der Waals (vdW) bonded quintuple layers (QLs) and it is widely accepted to be the most stable surface. However, little is known of the stability of other surfaces which may play important roles in growth, kinetics…
We theoretically predict the stability of liquid in a model brush made of flexible fibers for cases in which liquid is supplied from an ink reservoir. The volume of the liquid in the brush increases with increasing applied pressure by the reservoir, and the liquid shows instability at a critical pressure. When the fib…
Evidence for faster etching at the mask-substrate interface: atomistic simulation of complex cavities at the micron-/submicron-scale by the continuous cellular automaton, Gosálvez, M A, Ferrando, N, Fedoryshyn, Y, Leuthold, J, McPeak, K M
A systematic study of magnetic and structural properties of MnRh thin films fabricated onto MgO substrates and amorphous SiO2 has been conducted. All the MnRh thin films thus fabricated are found to be of the CsCl type structure, and exhibit the ferromagnetism at room temperature. The coercivity of about 1.1 kOe was o…
Recent experiments have demonstrated that in a dense monolayer of photo-switchable dye methyl-red molecules the relaxation of an initial birefringence follows a power-law decay, typical for glass-like dynamics. The slow relaxation can efficiently be controlled and accelerated by illuminating the monolayer with circula…
Raman spectroscopy is used to study magnetic excitations in the quasi-one-dimensional $S=1/2$ quantum spin systems $\text{Cu}(\mathrm{Qnx}){({\mathrm{Cl}}_{1\ensuremath{-}x}{\mathrm{Br}}_{x})}_{2}$. The low energy spectrum is found to be dominated by a two-magnon continuum as expected from the numerical calculations f…
This report introduces a unique method of significantly improving toughness in highly swollen block copolymer-based thermoplastic elastomer (TPE) hydrogels by converting an intrinsically large population of dangling chain ends into a mechanically active second network. In one form, the TPE hydrogels developed by our g…