Materials Literature
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Two crystal growth methods dedicated to very low solubility actinide coordination polymers have been developed and applied to the synthesis of mixed actinide(IV)–actinide(IV) or actinide(IV)–actinide(III) oxalate single crystals of a size (typically 100–300 μm) suitable for isolating them and examining their crystal s…
We discuss the thermoelectric properties assisted by the Fano effect of a parallel double quantum dot (QD) structure. By adjusting the couplings between the QDs and leads, we facilitate the nonresonant and resonant channels for the Fano interference. It is found that at low temperature, Fano lineshapes appear in the e…
We have studied long time relaxation effects on the nonvolatile resistance state produced by resistive switching in devices composed by ceramic YBa${}_{2}$Cu${}_{3}$O${}_{7\ensuremath{-}\ensuremath{\delta}}$ and La${}_{0.7}$Sr${}_{0.3}$MnO${}_{3}$/metal (Au, Pt, Ag) interfaces. The time relaxation can be described by…
We report on the dynamical properties of interacting colloids confined to one dimension and subjected to external periodic energy landscapes. We particularly focus on the influence of hydrodynamic interactions on the mean-square displacement. Using Brownian dynamics simulations, we study colloidal systems with two typ…
Abstract Microstructured silicon doped with selenium beyond the equilibrium solid solubility limit was formed by picosecond pulsed laser mixing of a 20‐nm Se film with the underlying p‐Si wafer. The effects of pulse fluence varying from 0.40 to 0.72 J cm−2 on the structural and electronic properties of this material w…
Nanobarcodes consisting of multicomponents and multisegments have gained attention lately because they can offer multiple functionalities. Here, we report the structure, composition, and magnetic properties of CoFe/Au nanobarcodes fabricated by a pulsed electrodeposition method in one solution bath. The nanobarcodes w…
The thermal conductance of a single silicon nanojunction was measured based on a Lab-in-a-TEM (microelectromechanical systems in a transmission electron microscope) technique and was found to be at least 2 orders of magnitude larger than the ones of long nanowires in the 380-460 K temperature range. The predominance o…
An efficient tight-binding model including magnetism and spin-orbit interactions is extended to metallic alloys. The tight-binding parameters are determined from a fit to bulk ab initio calculations of each metal and rules are given to obtain the heteroatomic parameters. The spin and orbital magnetic moments as well a…
We inscribed relief diffraction gratings with periods of 6, 14, and 24 μm into the surface of Ge15Ga3Sb12S70 bulk glass by the material’s ablation using a femtosecond λ=800 nm Ti:sapphire pulsed laser. The laser writing was done with sample implemented on a computer-controlled stage employing surface-to-beam alignment…
Controllable alignment of liquid crystal molecules inside micro-capillaries is an essential issue to obtain repeatable devices based on photonic liquid crystal fibres. In this paper we describe in detail the photo-alignment technique for micro-capillaries based on sulfuric azo dye SD-1 which allows for stable alignmen…
Temperature and glucose sensitive microgels were prepared via radical precipitation polymerization, using N-vinylcaprolactam (NVCL) as the main monomer, N,N-methylenebisacrylamide (MBA) as a crosslinker, V50 as initiator and 4-vinylphenylboronic acid (VPBA) as a functional monomer. The LCST of homopoly (NVCL) was firs…
(1)H and (31)P NMR spectra, line widths, spin-lattice relaxation times (T(1)), and (1)H self-diffusion coefficients (D) were determined for two distinct poly(benzimidazole) (PBI) proton exchange membranes (PEM), para-PBI and dihydroxy-PBI (2OH-PBI), both incorporating varying concentrations of phosphoric acid. The stu…
Abstract A siloxane‐crown ether polyamide copolymer (PDMS‐PA‐DB18C6) was electrochemically investigated for fabrication of lead‐sensitive electrodes for trace analysis in aqueous solutions. The PDMS‐PA‐DB18C6 electrodes were successfully evaluated for anodic stripping voltammetric determination of lead(II) as a promis…
Metal amidoboranes (MABs), such as lithium amidoborane (LiAB), show superior ability in reducing ketones and imines directly into their corresponding secondary alcohols and amines, respectively, at room temperature with high conversion and yields. A mechanistic study indicates that the reduction proceeds through a dou…
The heterodinuclear complexes [Fe(III)Mn(II)(L-Bn)(μ-OAc)(2)](ClO(4))(2) (1) and [Fe(II)Mn(II)(L-Bn)(μ-OAc)(2)](ClO(4)) (2) with the unsymmetrical dinucleating ligand HL-Bn {[2-bis[(2-pyridylmethyl)aminomethyl]]-6-[benzyl-2-(pyridylmethyl)aminomethyl]-4-methylphenol} were synthesized and characterized as biologically…
We use high-frequency electron paramagnetic resonance (EPR) and high-resolution optical Fourier spectroscopies to characterize hyperfine interactions of the impurity Ho${}^{3+}$ ions in KY${}_{3}$F${}_{10}$ crystals. Well-resolved hyperfine structure is observed in the EPR spectra for several transitions within the gr…
Propidium iodide (PI) is a fluorescent nucleic acid dye that contains iodide molecules. Thiol-organosilica particles that were internally functionalized with PI (PI particles) were prepared for X-ray computed tomography (CT) and multicolor fluorescence imaging. PI particles of various sizes were synthesized in a one-p…
The aim of this work is to determine the fatigue life of 316L stainless steel. The mechanisms of fatigue of 316L stainless steels were investigated and discussed. The fatigue tests were carried out at constant-amplitude cyclic loading with load ratio R=0.1. Scanning Electron Microscope (SEM) is then used to examine th…
The dependence of the ion-temperature-gradient scale length on the hydrogen isotope mass was examined in conventional H-mode plasmas in JT-60U tokamak. While identical profiles for density and temperature were obtained for hydrogen and deuterium plasmas, the ion conductive heat flux necessary for hydrogen to sustain t…
Although various kinds of metal binding proteins have been constructed by de novo design, the creation of a binuclear metal binding site remains especially challenging. The purple copper site in subunit II of COX, referred to as the Cu(A) site, has two copper ions bridged by two Cys residues. We constructed the Cu(A)…