Materials Literature
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A considerable challenge is faced by researchers wishing to identify the propagation vector(s) associated with a magnetic structure or a lattice distortion from powder diffraction data, due to the severe destruction of information by powder averaging and search algorithms based on extracted peak positions. In this art…
In this paper we study deformation, failure and breakage of visco-elastic thin films of aging laponite suspension under tensile deformation field. Aqueous suspension of laponite is known to undergo waiting time dependent evolution of its micro-structure, also known as aging, which is accompanied by an increase in the…
Poly(aryleneethynylene)s (PAE) are easily synthesized, chemically stable, and color-responsive towards their surroundings. These superbly chromic polymers are attractive as active transducers in sensors and advanced organic electronic devices. PAEs are generally fluorescent with emission maxima ranging from 420-600 nm…
Three- and two-dimensional chirality arising from the mutual orientation of non-chiral planar metamaterial structures and the incident electromagnetic wave (extrinsic chirality) lead to pronounced optical activity, circular dichroism and asymmetric transmission indistinguishable from those seen in media consisting of…
Density-functional theory calculations have been carried out to systematically study single surface oxygen vacancies on ${\text{CeO}}_{2}(111)$. It is surprisingly found that multiple structures with the two excess electrons localized at different positions can exist. We show that the origin of the multiconfigurations…
Photomechanical bending of trans-4-(dimethylamino)azobenzene microcrystals was observed. Upon UV irradiation, the (001) face of the platelike microcrystals bent quickly in the direction opposite the light source, reaching the maximum deflection after 0.5 s. The microcrystal returned to its initial flat shape 30 s afte…
Received 28 April 2009DOI:https://doi.org/10.1103/PhysRevLett.102.189902©2009 American Physical Society
TU6PFP028
The structural and optical emission properties of Er-doped silicon-rich silica layers containing 1021 at cm−3 of erbium are studied as a function of deposition conditions and annealing treatment. Magnetron co-sputtering of three confocal targets (Si, SiO2 and Er2O3) under a plasma of pure argon was used to deposit the…
We present a wet deposition process for doping of fluorescent dye and then metal salt by diffusion into a single emitting polymer layer of triazole-end-capped polyfluorene (TazPFO), which can provide color tuning and performance improvement for polymer light-emitting diode fabrication. The original blue emission from…
The observation of a first order phase transition between two fluid phases, reported by R. Angelini [Phys. Rev. E 78, 020502(R) (2008)], is not supported by the measurements and is shown to be caused by the loss of solubility of alpha-cyclodextrin in the water-4-methylpyridine solvent.
The open ends of oxide nanotubes (NTs) can be sealed with silica at room temperature and pressure after incorporation of desired materials into the NTs, the payload volume of which is adjustable (see picture for the case of fluorophores). This process originates from a synergetic reaction of capillary-condensed water…
The influence of the microstructure on the wear behaviour of some hardened sintered steels produced with diffusion bonded powders and subjected to through hardening, carburising and sinterhardening was investigated. In dry sliding, wear was oxidative in nature and the localised surface deformation caused delamination,…
The efficient analysis of practical metamaterial slabs, formed by networks of diverse split-ring resonators, is presented in this paper, concerning their competence to guide surface waves. Dispersion curves of the supported modes are consistently derived through closed-form expressions with average constitutive parame…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionMolecular Simulations for Adsorptive Separation of CO2/CH4 Mixture in Metal-Exposed, Catenated, and Charged Metal−Organic FrameworksRavichandar Babarao, Jianwen Jiang, and Stanley I. SandlerView Author Information Department of Chemical & Biomolecular Engineering, Na…
ADVERTISEMENT RETURN TO ISSUEPREVAddition and Correct...Addition and CorrectionORIGINAL ARTICLEThis notice is a correctionQuantitative CT Imaging of the Spatial and Temporal Distribution of Liposomes in a Rabbit Tumor ModelJinzi Zheng, David Jaffray, and Christine Allen*Cite this: Mol. Pharmaceutics 2009, 6, 3, 1040Pu…
The deformation of large- aperture optical mirror is induced by gravity. It is very important to analyze the support structure and format in grounding and testing. By finite element software, a Φ620mm mirror is created and its theoretical analysis about three comparative testing programs of vertical support is propose…
Abstract BACKGROUND: Salicornia bigelovii Torr. is a promising seasonal plant using seawater production but perishable with short shelf‐life under ambient conditions. To develop a modified atmosphere packaging (MAP) for extension of S. bigelovii shelf‐life, a nonselective polyethylene/polyamide (PE/PA) bag combining d…
The temperature-dependent structural changes were investigated by using the X-ray diffraction and the Extended X-ray absorption fine spectroscopy (EXAFS) for layered perovskite manganites La 2-2x Sr 1+2x Mn 2 O 7 (x=0.33 and 0.4). The anomalous changes of Mn-O bond length and Jahn-Teller (J-T) distortion of MnO 6 octa…
For mild steel, after significant plastic deformation in one direction, a subsequent deformation in an orthogonal direction shows a typical stress overshoot compared to monotonic deformation. This phenomenon is investigated experimentally and numerically on a DC06 material. Two models that incorporate the observed ove…