Materials Literature
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Als Cluster von Wassermolekülen, die auf einem Gerüst präsentiert werden – ein „präorganisiertes Wasseroligomer“ –, lässt sich Sialyl-Lewisx (sLex) beschreiben. Den Antrieb für die Bindung von sLex an E-Selectin liefern der hohe Grad an Präorganisation, der ein Netzwerk von gerichteten Wasserstoffbrücken ermöglicht, u…
An electron beam inducing method for sprouting large quantities of silver nanoparticles on the surface of silver chloride particles is reported. The electron beam driven process was characterized by time-dependent scanning electron microscope (SEM) and energy dispersive spectrum (EDS), allowing for observing several k…
The oxidation of CH 4 has been investigated in the presence and absence of the atomic Au − ion catalyst. We have employed the first principles density functional theory (DFT) and dispersion-corrected DFT calculations for the transition state on the Au − ion and analyzed the thermodynamics properties of the reactions a…
We have investigated the change in structural and electrical properties of In(2x)Ga(2-2x)O(3) nanowires (x = 1, 0.69 and 0.32) grown with varied indium (In) and gallium (Ga) contents. The as-grown In(2x)Ga(2-2x)O(3) nanowires kept the cubic crystal structure of In(2)O(3) intact even when the atomic percentages of Ga w…
Abstract A high‐performance spin filter tunnel junction composed of an epitaxial oxide heterostructure is reported. By independently controlling the magnetic orientations of ferromagnetic tunnel barrier and electrode layers, a tunnel magnetoresistance ratio exceeding 120% is obtained purely by the spin filtering effec…
The morphology of small gold particles prepared by Volmer–Weber growth on sapphire substrates have been investigated by two different characterization techniques. First, by non-extensive atomic force microscopy (AFM) in combination with optical spectroscopy and modeling of the optical properties using a theoretical mo…
This Letter addresses a new finding of the connection between the macroscopic fatigue cracking behaviors of twin boundaries (TBs) and the microscopic TB-dislocation interactions. According to the difference in crystallography beside TBs, slipping dislocations usually interact with TBs in different modes during plastic…
In this letter, we report the observation of backward stimulated Mie scattering in a suspension of CdSe/Cds/ZnS nanocrystals in chloroform, pump by 816-nm or 1064-nm nanosecond laser pulses. The observed stimulated scattering exhibits the features of no frequency-shift, low pump threshold requirement, and easy control…
Density functional theory calculations found that spin density distributions of platinum clusters adsorbed on nanometer-size defective graphene patches with zigzag edges deviate strongly from those in the corresponding bare clusters, due to strong Pt-C interactions. In contrast, platinum clusters on the pristine patch…
Different surface structure of spacer fabric implies different spacer yarn arrangement and therefore the compression resistance of fabric. The spacer yarns' arrangement modeling of warp knitted spacer fabrics having identical parameters (thickness, density, material etc.) but different surface structures on double-nee…
Titania (anatase) nanoparticles were successfully PEGylated through the use of catechol (dopamine)-terminated PEG derivatives. The resulting materials were characterized by excellent stability at neutral pH and extremely low toxicity (phagocytic and nonphagocytic cell lines). In particular, we focused on the compariso…
The circular transfer length method was employed to extract the specific contact resistivity, ρc of GeTe (amorphous and crystalline state) with metals (Ni, W, TiW) to quantify the series contact resistance. The ρc of amorphous-GeTe with metals was also determined for different annealing conditions. Higher metal work f…
TEM analysis of nanoparticle dispersions in solution has previously been limited, in the main, to the measurement of primary particle size due to the drying effects that occur during sample preparation. We show that solutions prepared for TEM by plunge freezing specimen grids coated with a blotted solution is a sensit…
Strong and stable blue photoluminescence (PL) at room temperature has been observed from amorphous oxidized silicon nitride (a-SiNx:O) films with Ag nanoparticles inserted between a-SiNx:O films and Si substrates. The resonant excitation of localized surface plasmons (LSPs) with the emission of a-SiNx:O films has resu…
We report the quantum capacitance of a monolayer graphene device in an external perpendicular magnetic field including the effects of Rashba spin-orbit interaction (SOI). The SOI mixes the spin up and spin down states of neighbouring Landau levels into two (unequally spaced) energy branches. In order to investigate th…
We report on electrical properties and the generation of the E4 defect in pulsed-laser deposited MgxZn1−xO thin films irradiated with 2.25 MeV protons. Whereas the electrical properties of the Schottky diodes as well as the net doping density of the samples did not change due to irradiation, the concentration of the E…
Der monokline Perowskit BiCo1−xFexO3 (x≈0.7) durchläuft einen Strukturübergang zweiter Ordnung von tetragonal nach monoklin, der mit einer Drehung des Polarisationsvektors von der [001]- in die [111]-Richtung einer pseudokubischen Zelle einhergeht. Die durch Elektronenbeugung und Synchrotron-Pulverröntgenbeugung ermit…
The study investigated the chemical doping effect of Li in the Fe(Se,Te) system. With the addition of Li, the NiAs phase was precipitated, which resulted in worse superconductivity in FeSe samples. The XRD results indicated that chemical stress was found in the FeTe system which showed no superconductivity by doping L…
The thermal conductivity of carbon nanotubes with Stone-Wales (SW) defects was investigated using non-equilibrium molecular dynamics method. The defect effects were analyzed by the temperature profile and local thermal resistance of the nanotubes with one or more SW defects and further compared with perfect tubes. The…
An understanding of the reaction mechanisms of ethylenediaminetetraacetic acid (EDTA) and diethanolamine (DEA) for producing solution-derived (K, Na)NbO 3 (KNN) thin films with outstanding piezoelectric properties and low leakage current is developed. X-ray photoelectron spectroscopy (XPS), Fourier transform infrared…