Materials Literature
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Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Y.-H. A. Wang, A. Gupta, M. Chshiev, W. H. Butler; Induced half-metallicity in Cr-based ferromagn…
Recent experimental and computational advances have clearly established the importance of the linear alkylthiolate−Au−alkylthiolate (RS−Au−SR) complex at the interface between the thiolate groups and the gold surface. By using density functional theory-based first principles method, here we show that the elementary di…
We performed temperature-dependent neutron pair distribution function (PDF) analysis on relaxor ferroelectric ${[\text{Pb}({\text{Zn}}_{1/3}{\text{Nb}}_{2/3}){\text{O}}_{3}]}_{1\ensuremath{-}x}{[{\text{PbTiO}}_{3}]}_{x}$ $(\text{PZN-}x\text{PT})$ ($x=0.05$ and 0.12) from 550 to 150 K. The experimental PDF spectra clea…
Abstract Enders' N‐heterocyclisches Carben (NHC) dehydriert den Ammoniak‐Boran‐Komplex mit einer vergleichsweise niedrigen Aktivierungsbarriere zu NH 2 BH 2 und NHC‐(H) 2 . Ein Nickel‐NHC‐Katalysator im Reaktionsmedium zersetzt das gebildete NHC‐(H) 2 in H 2 und freies NHC, das wiederum Ammoniak‐Boran‐Komplex dehydrie…
A new pyran-based CTD monomer, allyl 2-(2,6-bis(( E )-4-(dimethylamino)styryl)-4 H -pyran-4-ylidene)-2-cyanoacetate ( 2 ), was successfully synthesized by Knoevenagel reaction. Copolymerization of 2 with styrene (St), methyl methacrylate (MMA), and acrylonitrile (AN) afforded copolymers with different polarity, P(St-…
Abstract In this study, the preparation of a new class of amphiphilic block copolymers consisting of a poly(phthalaldehyde) (PPA) block and hydrophilic poly(alkylene oxide) blocks is described. PPA was prepared by ionic cyclopolymerization. A telechelic polymer block was prepared by endcapping of the PPA by a bifuncti…
Superlinear-variation in short circuit photocurrent with increasing incident optical power has been observed in metal-insulator-semiconductor structures having a silicon rich oxinitride active layer containing silicon nanocrystals. A model has been elaborated where an internal gain mechanism explains the superlinear p…
The biomimetic formed solution of collagen reconstituted films into native fibers proved to be of high interest because of its regenerative medical applications. A variety of tests to characterize the mechanical properties of biomimetic engineered films are illustrated in this paper. Based on our previous results, the…
We investigate the behavior of liquid crystal dynamic flow in a cell with a bidirectional alignment (BDA) surface. Numerical simulations show that with a BDA surface having a pitch comparable to the cell gap d, the liquid crystal dynamic flow direction can be controlled by the driving voltage. Such an effect can be ap…
Abstract In this work, in situ investigations of the micromechanical properties of reactively compatibilized blends of polyamide 6 (PA6) and an acrylonitrile–butadiene–styrene copolymer (ABS) were performed with transmission electron microscopy. Three PA6/ABS blends were prepared with a disperse morphology (inclusions…
Abstract The filling of porous silicon with polypyrrole by electropolymerization was investigated. The filling with polypyrrole proceeded preferentially along the porous silicon wall, leading to the formation of tubular structures. By repeating the porosification, the pore filling and the additional porosification, th…
The purpose of this study is to consider the effect of polydispersity in triblock copolymer on its order-to-disorder phase transition and morphology, by supplementing continuous description of polymer indices carried out using random phase approximation by a discrete sampling of the polydispersity performed at the mes…
Abstract Two novel poly(amine‐hydrazide)s were prepared from the polycondensation reactions of the dicarboxylic acid, 9‐[ N , N ‐di(4‐carboxyphenyl)amino]anthracene ( 1 ), with terephthalic dihydrazide ( TPH ) and isophthalic dihydrazide ( IPH ) via the Yamazaki phosphorylation reaction, respectively. The poly(amine‐h…
The growth of Fe-Ni based amorphous nanocolumns has been studied using atomic force microscopy. The root mean square roughness of the film surface increased with the deposition time but showed a little change at higher deposition time. It was found that the separation between the nanostructures increased sharply during…
High refrigerant capacity of PrNi5−xCox magnetic compounds exploiting its spin reorientation and magnetic transition over a wide temperature zone, Rocco, D L, Amaral, J S, Leitão, J V, Amaral, V S, Reis, M S, Das, Soma, Fernandes, R P, Araújo, J P, Pereira, A M, Tavares, P B, Martins, Nuno V, Coelho, A A
Formation of biopolymer-stabilized nanosuspensions followed by dextranase enzyme treatment is demonstrated for the liberation of monodisperse particles of controllable size up to 6 nm (see image). A range of metal oxide nanoparticles stabilized by remnant oligomer at ≈3 wt% are reliably prepared for applications that…
We have investigated structural, magnetic, and transport properties of $\text{Fe}{({\text{Sb}}_{1\ensuremath{-}x}{\text{Te}}_{x})}_{2}$ single crystals. Whereas metallic ground state is induced for $x=0.001$, canted antiferromagnetism is observed for $0.1\ensuremath{\le}x\ensuremath{\le}0.4$ with an intermediate ferro…
Abstract In this study, the effects of different parameters on the morphological properties of ternary blends were investigated. Therefore two systems (PET/H‐EVA/PP and PET/ L ‐EVA/PP, H‐EVA and L ‐EVA are high and low viscosity, respectively) were prepared by melt mixing process. In all of the blends, poly (ethylene…
Four inner tetrathiafulvalene-sulfoxides have been synthesized upon reaction of tetrathiafulvalene (TTF), tetramethyl-tetrathiafulvalene (TMTTF), tetrakis (thiomethyl)-tetrathiafulvalene (TMT-TTF), and bis(ethylenedithio)-tetrathiafulvalene (BEDT-TTF) with enantiopure (+) or (-)-(8,8-dichlorocamphorylsulfonyl)-oxaziri…
The persistent field effect control of ferromagnetism in a diluted magnetic semiconductor by low-voltage polarizing pulses is demonstrated in a ferroelectric gate field effect transistor configuration. The Curie temperature of the (Ga,Mn)As channel is unambiguously signaled by a cusp in the temperature derivative of r…