Materials Literature
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The stability of the magnetic dipole and the metamaterial with negative permeability are investigated. Analytical expressions of the interaction force and stiffness of the magnetic line and metamaterial with negative permeability are derived. The repulsive force between the magnetic line and the metamaterial exceeds t…
The gold (Au) nanorods with various aspect ratios are obtained by a seed-media method in low pH growth solution. Transmission electron microscopy (TEM) and UV-visible spectrophotometry are utilized to characterize the Au nanorods, and the longitudinal absorption peak positions of Au nanorods show different shifting tr…
Using the phase field crystal approach, the crystallization process within the liquid–solid coexistence region is investigated for a square lattice on an atomic scale. Two competing growth modes, i.e., the diffusion-controlled growth through long-range atomic migration in liquid and the diffusionless growth through lo…
Research on crystal morphology covers shape evolution of single crystal and evolution of the size and shape distribution of populations of crystals. The population balance models have been used for the single or multiple dimensions for predicting the evolution of crystal size distributions (CSDs). More often than not…
This study aims to improve the photodynamic properties and biological effectiveness of 15(1)-hydroxypurpurin-7-lactone dimethyl ester (G2), a semisynthetic photosensitizer, for the PDT treatment of cancer. The strategy we undertook was by conjugating G2 with aspartic acid and lysine amino acid moieties. The photophysi…
Due to high ionic conductivity and favorable oxygen electrocatalysis, doped Bi 2 O 3 systems are promising candidates as solid oxide fuel cell cathode materials.Recently, several researchers reported reasonably low cathode polarization resistance by adding electronically conducting materials such as (La,Sr)MnO 3 (LSM)…
ABSTRACT Conductive polymers such as poly(3,4‐ethylenedioxythiophene) poly(styrenesulfonate) or PEDOT:PSS has become increasingly important in present day organic electronics. PEDOT:PSS being a polymer is more durable than metals used in electronics and thus offers greater mechanical flexibility during operation. This…
A simple procedure for the measurement of the degree of linear polarization at a synchrotron radiation station is described. The diffraction pattern from a glass plate set perpendicular to the incident beam is registered using a two-dimensional area detector. The intensity variation along the azimuth angle ρ at a cons…
It is well-known that in the disordered harmonic chain, heat conduction is subballistic and the thermal conductivity (κ) scales asymptotically as lim(L--> ∞) κ ∝ L(0.5) where L is the chain length. However, using the nonequilibrium Green's function (NEGF) method and analytical modelling, we show that there exists a c…
Carbon nanotubes and graphene are carbon-based materials, which possess not only unique structure but also properties such as high surface area, extraordinary mechanical properties, high electronic conductivity, and chemical stability. Thus, they have been regarded as an important material, especially for exploring a…
The Co 2 FeSi films are deposited on Si (100) substrates by an oblique sputtering method at ambient temperature. It is revealed that the microwave ferromagnetic properties of Co 2 FeSi films are sensitive to sample position and sputtering power. It is exciting that the as-deposited films without any magnetic annealing…
We investigate the spin Hall effect (SHE) in a wide class of spin-orbit coupling systems by using the spin force picture. We derive the general relation equation between spin force and spin current and show that the longitudinal force component can induce a spin Hall current, from which we reproduce the spin Hall cond…
Two new cyanide-bridged heteropolymolybdate complexes have been synthesized by a facile self-assembly process in aqueous solution, which demonstrates a successful tactic to incorporate the cyanometalate fragment into lacunary heteropolymolybdate. Magnetic investigation showed that complex 2 exhibits slow magnetic rela…
Electrochemical oxidation of chalcopyrite (CuFeS2) was investigated as an attempt to gain a better understanding of its surface oxidation chemistry in alkaline solutions. Rest potential measurements, cyclic voltammetry and chronoamperometry experiments were conducted in the pH range of 7 to 13 to determine the influen…
The aim of this study is to prepare a stable phosphatidylcholine/bile salt micelles with Pluronic F127-polyethylenimine conjugates (F127-PEI), d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS), soybean phosphatidylcholine (SPC) and sodium cholate (NaC) and to elucidate the effects and possible mechanism of mice…
Hexagonal ferrites, also known as hexaferrites, are a very interesting class of materials with peculiar magnetic and electrical properties. Recently, several applications, both commercial and technological, have been developed by employing such materials, such as in magnetic recording and separation, storage devices,…
Transmission electron microscopy (TEM) study of SrPt 2 As 2 reveals two incommensurate modulations appearing in the charge-density-wave (CDW) state below T CDW ≈ 470 K. These two structural modulations can be well explained in terms of condensations of two-coupled phonon modes with wave vectors of q 1 = 0.62a* on the…
Oxidized asphaltene (OA), a thermosetting material with plenty of functional groups, is synthesized from asphaltene (A) using HNO 3 /H 2 SO 4 as the oxidizing agent. Boron, nitrogen co-doped porous carbon (BNC—OA) is prepared by carbonization of the mixture of boric acid and OA at 1173 K in an argon atmosphere. X-ray…
The properties of Raman phonons are very important due to the fact that they can availably reflect some important physical information. An abnormal Raman peak is observed at about 558 cm −1 in In film composed of In/InO x core—shell structured nanoparticles, and the phonon mode stays very stable when the temperature c…
Thermal ablation is a common and effective method to treat human liver carcinoma and metastases in medical surgeries. For characterizing the effects of thermal treatment on the organ and understanding the physical and mechanical processes during this procedure, the temperature-dependent mechanical properties of biolog…