Materials Literature
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Powered by effective parquet nesting a commensurate chiral honeycomb superstructure in a trigonally packed transition metal dichalcogenide TaSe$_2$ results in a Dirac cone anomaly in one-particle excitation spectrum. However, the formation of the well defined Dirac point seems to be hindered by effective scattering on…
We investigate the power dependence of pure spin current injection in GaAs bulk and quantum-well samples by a quantum interference and control technique. Spin separation is measured as a function of the relative strength of the two transition pathways driven by two laser pulses. By keeping the relaxation time of the c…
We report on the synthesis of ferromagnetic cobalt nanocubes of various sizes using thermal pyrolysis method and the effect of shape anisotropy on the static and dynamic magnetic properties were studied. Shape anisotropy of approximately 10 % was introduced in nanocubes by making nanodiscs using a linear chain amine s…
In this work we study the high-pressure behaviour of liquid and glassy GeO(2) by means of molecular dynamics simulations. The interaction potential, which includes dipole polarization effects, was parametrized using first-principles calculations. Our simulations reproduce the most recent experimental structural data v…
Hydrogen is a ubiquitous element that enters materials from many different sources. It almost always has a deleterious effect on mechanical properties. In non-hydride-forming systems, research to date has identified hydrogen-enhanced localized plasticity and hydrogen-induced decohesion as two viable mechanisms for emb…
Improvement of existing properties and the creation of new material properties are the most important reasons for the functionalization of textiles. Polymer nanocomposites offer the possibility of developing a new class of nanofinishing materials for textiles with their own manifold of structure property relationship…
The influence of Hofmeister salts was investigated on the cloud point of three poly(2-oxazoline)s, namely poly(2-ethyl-2-oxazoline) [PEtOx], poly(2-n-propyl-2-oxazoline) [PnPropOx], and poly(2-isopropyl-2-oxazoline) [PiPropOx]. In addition, a comb polymer based on oligo-2-ethyl-2-oxazoline side chains and a methacryla…
Part I: Super-resolution Negative-Refractive-Index Transmission-Line (NRI-TL) Metamaterial Lenses and Superlenses, A. K. Iyer and G. V. Eleftheriades Flat Lenses Formed by Photonic and Electromagnetic Crystals, P. A. Belov, C. R. Simovski, and P. Ikonen Subwavelength Imaging by Arrays of Metallic Rods, P. A. Belov, M.…
In an ideal scenario, a phase field model is able to compute quantitative aspects of the evolution of microstructure without explicit intervention. The method is particularly appealing because it provides a visual impression of the development of structure, one which often matches observations. The essence of the tech…
In this work, we have investigated the spectral function of graphene on a monolayer of intercalated gold on Ru(0001) using angle-resolved photoemission spectroscopy (ARPES). The intercalation leads to a decoupling of the graphene film, as documented by emergence of the characteristic linear π-bands near the Fermi leve…
Twin boundaries in ferroelastics and curved interfaces between crystalline and amorphous zircon can, in principle, act as multiferroic structural elements and lead the way to the discovery of novel multiferroic devices which are based on structurally heterogeneous materials. While this paradigm has not yet been explor…
Temperature ramp Fourier transform infrared (FTIR) microspectroscopy was utilized to examine hydrogen bonding (HB) in and crystallization of supercooled aqueous acetone solutions. We showed that temperature and concentration-dependent transitions between different water populations, representing distinct HB organizati…
Abstract Functional groups on a material surface affect the response of many cell types. As part of our strategy aimed at engineering lung tissue, we introduced functional groups into the surface of Poly( D , L ‐lactide) (PDLLA) films to improve its suitability for the culture of mature pulmonary epithelial cells (A54…
A lot of molecular (magnetic) conductors are prepared largely using charge-transfer (CT) salts of donor molecules with acceptor molecules or nonmagnetic or magnetic anions such as metal halides and oxides; their CT salts are usually obtained as bulk crystals, which are used to elucidate the electrical conducting (magn…
This paper discusses a modified sol–gel process, which can prepare nanocrystalline BaTiO 3 powders, fibers, and thin films. This process involved the preparation of stable precursor solutions containing the respective aqueous acetate solution of barium acetate and titanium isopropoxide where barium acetate and titaniu…
The chemical reactivity of neutral, cationic, and anionic species of the gas phase B(13) cluster with molecular oxygen, O(2), was investigated using density functional theory. All three species of B(13) interact with an oxygen molecule to generate a variety of stable isomers, with those representing a dissociative che…
The first Hofmann-DMF-type complexes Zn(DMF)2M(CN)4 (M = Ni (1), Pd (2), Pt (3)) have been synthesized by solution diffusion and characterized structurally by single-crystal X-ray diffraction. The structure consists of 2-D corrugated sheets stacking along the a-axis in an ABAB packing mode without interpenetration. Th…
Injection-molded samples of thermoplastic polyetherurethane (TPU) were treated with low-temperature oxygen plasma for different processing times in order to enhance cellular attachment for a gastric implant. Its effects were investigated by contact angle measurement, surface topography, cytotoxicity and cell colonizat…
We address the question of whether the structural disorder in the high-temperature β-cristobalite phase of silica can be explained on the basis of domain models using a new technique of phonon-based computer simulations of the pair distribution function. None of the domain models give as good an agreement to experimen…
A novel n-type transparent conducting oxide, an LaTiO3-doped indium oxide (ILTO) film, has been developed by double electron beam evaporation associated with an End Hall ion-assisted deposition technique. ILTO shows room-temperature UV photoluminescence (∼386 nm) and a thermally stable highly effective WF (∼5.2 eV) pr…