Materials Literature
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A Comment on the Letter by S. I. Bokarev et al., Phys. Rev. Lett. 111, 083002 (2013). The authors of the Letter offer a Reply.Received 9 September 2013DOI:https://doi.org/10.1103/PhysRevLett.112.129301© 2014 American Physical Society
The presented report focuses on an in-depth detailed characterization of immobilized methyltrioxorhenium (MTO), giving catalysts with a wide spectra of utilization. The range of mesoporous materials with different SiO₂/Al₂O₃ ratios, namely mesoporous alumina (MA), aluminosilicates type Siral (with Al content 60%-90%)…
Poly(ε-caprolactone- ran -ε-caprolactam) random copolymers, P(CLo- ran -CLa), were studied in a wide composition range (0 ≤ PCLo ≤ 55 wt %) and in the wet and dry states. Both crystalline and amorphous phases of the poly(ester amide)s were characterized, the first by wide-angle X-ray scattering and the latter by the t…
Earlier [1, 2] work highlighted an integrated process for electrically functional 12 nm half-pitch copper interconnects in an ultralow-k interlayer dielectric (ILD). In this paper, we focus on understanding and reducing undesired effects such as pattern asymmetry/distortion, and line undulation/ collapse. Key defect m…
Nd3+-doped bismuth titanate, (Bi4Ti3O12) (BiT) containing transparent glass-ceramics has been prepared by the melt-quenching followed by heat-treatment in the SiO2-K2O-Bi2O3-TiO2 (SKBT) system. The structural properties of the heat-treated GC are investigated using XRD, FE-SEM, TEM and FT-IR reflectance spectroscopy.…
Contact hole (CH) patterning by directed-self-assembly (DSA) of polystyrene-b-polymethylmethacrylate (PS-b-PMMA) block copolymers (BCPs) is extensively studied in this paper. Based on statistical analysis performed on 300mm wafers, a process window (PW) for CH shrink is experimentally evaluated in terms of hole open y…
Measured reflection electron energy loss spectra excited by 2 keV electrons in Si are simulated by a Monte Carlo approach using the Chen–Kwei theory to calculate the position‐dependent inverse inelastic mean free path. By comparing measured and calculated spectra, several prescriptions concerning the momentum transfer…
This work reports detailed investigations of a series of ∼2.6 nm sized, Sn1−xFexO2 crystallites with x = 0–0.10 using Mossbauer spectroscopy, x-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance spectroscopy (EPR), and magnetometry to determine the oxidation state of Fe dopants and their role in the…
The nature of mechanical strain mediated electromagnetic coupling in multiferroic composites has been studied extensively in recent years. This review is on composites with ferromagnetic or ferrimagnetic oxides and ferroelectrics. Systems studied so far include samples with spinel ferrites, hexagonal ferrites or lanth…
ABSTRACT Elastomer ethylene–butylacrylate–glycidyl methacrylate (PTW) containing epoxy groups were chosen as toughening modifier for poly(butylene terephthalate) (PBT)/polyolefin elastomer (POE) blend. The morphology, thermal, and mechanical properties of the PBT/POE/PTW blend were studied. The infrared spectra of the…
Studies on the dispersion of carbon nanotubes (CNTs) in silicon nitride (Si3N4) ceramics to provide the latter with electrical conductivity have been carried out in recent years. The density and the strength of Si3N4 ceramics were degraded, however, because the CNTs prevented Si3N4 from densifying. The CNTs disappeare…
Hydroxyapatite (HAp)/poly( L ‐lactic acid) (PLLA) interconnected macroporous materials are facilely and effectively fabricated by templating water‐in‐dichloromethane with PLLA (W/O) Pickering emulsions. The HAp nanoparticles modified with PLLA (g‐HAp nanoparticles) are used as effective particulate emulsifiers to prod…
We investigate, by means of first-principles calculations, the role of hBN point defects on the energetical stability and electronic structure of heterostructures composed of graphene atop hBN, rotated at angles of 13.17°, 9.43° and 7.34°. We consider, as possible point defects, boron and nitrogen vacancies and antisi…
Functionalization of metal, glass, and semiconductor substrates with polymers and nanoparticles is a key challenge for surface-based material science. Such substrates have the potential to find widespread application in optical and electronic devices, microarrays, and materials for information storage. We report site-…
PURPOSE: The aim of the work was to investigate mechanistic details of the preparation of graphene-like materials (GLM) via reduction of graphene oxide (GO) in aqueous dispersions by electron beam (EB) generated reducing free radicals. MATERIALS AND METHODS: A 10 MeV linear accelerator was employed to irradiate aqueou…
Using density functional theory (DFT), we report the modulated electronic and magnetic properties of MoS2 nanoribbon by passivating the ribbon edges with H and C separately. For the modeled symmetric MoS2 nanoribbon with a zig-zag type edge, one side is terminated at Mo and the other side is terminated at S. For the z…
Results of optical absorption measurements are presented together with calculated structural, electronic, and optical properties for the anhydrous monoclinic L-asparagine crystal. Density functional theory (DFT) within the generalized gradient approximation (GGA) including dispersion effects (TS, Grimme) was employed…
A series of linear clusters up to an aspect ratio of 1:6, formed as multimers of smaller clusters with an icosahedral Au13(5+) core having an eight-electron superatom configuration, are computationally predicted to have a greatly enhanced size-dependent absorption in the near-infrared (NIR) region extending to the bio…
Highly dispersed ruthenium (Ru) nanoparticles supported on activated carbon (AC) were controllably synthesized by supercritical fluid deposition (SFD). The Ru nanoparticles prepared by SFD presented a smaller mean particle size than particles prepared by the ethanol impregnation method. The effects of temperature, pre…
To understand the origins of stress in thin films, we have used wafer curvature to measure the stress evolution during electrodeposition of Ni on lithographically patterned Si substrates. The stress is measured as the hemispherical islands grow and impinge upon each other, forming interfacial boundaries between them.…