Materials Literature
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We investigate the use of AgSn alloys as the spacer layer in current-perpendicular-to-the-plane magnetoresistance devices. Alloying with Sn increases resistivity but results in a reasonably long (>10 nm) spin-diffusion length, so large magnetoresistance can be achieved with thin AgSn spacers. Compared to Ag thi…
Grain boundaries (GBs) commonly exist in crystalline materials and affect various properties of materials. The facile identification of GBs is one of the significant requirements for systematical study of polycrystalline materials including recently emerging two-dimensional materials. Previous observations of GBs have…
Understanding entropic contributions to ordering transitions is essential for the design of self-assembling systems with tunable hierarchical structures. Herein, we report entropy-mediated precise interfacial organization of Janus nanoparticles in the flexible–semiflexible block copolymers and the resulted optical pro…
Natural fibers have great potential to be used as reinforcement in composite materials. Cellulose, being a critical constituent of natural fibers, provides unquestionable advantages over synthetically produced fibers. Increasing demand for use of bio-based composites in different engineering and structural application…
The aim of this study was to improve the electrical resistivity, mechanical properties, and interfacial properties between the carbon fiber (CF) and cellulose of conductive paper containing 10% CF so as to better meet the demands for electric heating wood floors. With waterborne polyurethane (WPU) treatment and nitrog…
We have studied the effects of transition-metal Cr in excess on the electronic and magnetic properties of FeCr x Se ( x = 0.0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.10) alloys. We have used density functional based method Korringa–Kohn–Rostoker atomic sphere approximation within the coherent potential approximation to calcu…
Evolutions of elastic-plastic waves have been recorded in three series of plate impact experiments with annealed vanadium samples under conditions of shockless and combined ramp and shock dynamic compression. The shaping of incident wave profiles was realized using intermediate base plates made of different silicate g…
Purpose – The purpose of this paper is to identify and evaluate the potential cooling contribution provided by a phase change material cooling vest as part of the total heat exchange mechanism of the body and take in to account the negative side effects of wearing the cooling garments. Design/methodology/approach – In…
How to maintain sustained deformation in one-dimensional nanostructures without localized failure is an important question for many applications of nanotechnology. Here we report a phenomenon of torsional detwinning domino that leads to giant rotational deformation without localized failure in nanotwinned one-dimensio…
We recently disclosed a new ruthenium-catalyzed dehydrogenative cyclization process (CDC) of diamine-monoboranes leading to cyclic diaminoboranes. In the present study, the CDC reaction has been successfully extended to a larger number of diamine-monoboranes (4-7) and to one amine-borane alcohol precursor (8). The cor…
The effect of a semiconductor matrix on the band anticrossing interaction is studied for four different dilute-oxide material systems: ZnSO, ZnSeO, ZnTeO, and ZnCdTeO.The choice of host material allows for independent control of the energy separation between the conduction band edge and the O energy level as well as t…
The multiwalled carbon nanotubes/BaFe12O19-chitosan (MCNTs/BF-CS) Schiff base Ag (I) complex composites were synthesized successfully by a chemical bonding method. The morphology and structures of the composites were characterized with electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction…
Aggregation-induced emission (AIE) is an important photophysical phenomenon in molecular materials and has found broad applications in optoelectronics, bioimaging, and chemosensing. Currently, the majority of reported AIE-active molecules are based on either propeller-shaped rotamers or donor-acceptor molecules with s…
A monolayer assembly of silver nanodisks (AgNDs) was fabricated on the surface of a polydimethylsiloxane (PDMS) polymer substrate using the Langmuir–Blodgett technique. Upon stretching the PDMS substrate, the localized surface plasmon resonance (LSPR) spectrum of the AgND monolayer is blue-shifted when the incident li…
We report the synthesis and characterization of a new class of achiral three-ring bent-core compounds with an amide and ester linkage at the molecular bend, which are shown to exhibit nematic/phases in wide temperature ranges around room temperature (RT) and undulated SmC phases below RT. In contrast to previous studi…
The formation of a poly(2,6-carbazole) derivative during an electrochemical polymerization process is shown. Comparison of 3,5-bis(9-octyl-9H-carbazol-2-yl)pyridine and 3,5-bis(9-octyl-9H-carbazol-3-yl)pyridine by electrochemical and UV-Vis-NIR spectroelectrochemical measurements and DFT (density functional theory) ca…
Dissolution trend and solubility data of calcium sulfate dihydrate (CaSO 4 ·2H 2 O gypsum) in aqueous Na, Ca, Mg, and Al chloride salt solutions have been studied at 278.15 K to 308.15 K. The concentration ranges were up to 4.5 mol·L –1 for NaCl, 3.0 mol·L –1 for MgCl 2, 2.0 mol·L –1 for CaCl 2, and 1.6 mol·L –1 for A…
Understanding thermal transport in nanoscale systems presents important challenges to both theory and experiment. In particular, the concept of local temperature at the nanoscale appears difficult to justify. Here, we propose a theoretical approach where we replace the temperature gradient with controllable external b…
Though l-arginine-containing polymers show versatile biological functions, a precisely controlled synthesis of poly(ethylene glycol)-b-poly(l-arginine) (PEG-b-PArg) block copolymers has not been reported. Here, an effective method for the synthesis of PEG-b-PArg block copolymers is developed. In order to obtain PEG-b-…
We consider an array of isotropic particles possessing electric polarizability located in the sites of a cubic lattice. The dispersion properties of the structure and the polarization of eigenmodes are studied employing the discrete dipole model. We reveal the features beyond the effective medium model, namely, the an…