Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA New Type of Thermally Induced Spin Transition Associated with an Equatorial .dblarw. Axial Conversion in a Copper(II)-Nitroxide ClusterFabrice Lanfranc de Panthou, Elie Belorizky, Roberto Calemczuk, Dominique Luneau, Christophe Marcenat, Eric Ressouche, Philippe Turek, and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSymmetry of Annealed Wurtzite CdSe Nanocrystals: Assignment to the C3v Point GroupJ. J. Shiang, A. V. Kadavanich, R. K. Grubbs, and A. P. AlivisatosCite this: J. Phys. Chem. 1995, 99, 48, 17417–17422Publication Date (Print):November 1, 1995Publication History Published onlin…
${\mathrm{SrTiO}}_{3}$ belongs to the class of incipient ferroelectrics in which an electrically ordered state is suppressed by quantum fluctuations. To investigate the nature of these excitations, we have measured the linear and nonlinear susceptibilities of ${\mathrm{SrTiO}}_{3}$ as a function of temperature T and f…
A mathematical model of a tubular solid oxide fuel cell is presented. The complete electrochemical and thermal factors are accounted for in a rigorous manner. All required parameters are determined from independent sources; none are fit from performance data. To verify the accuracy of the model predictions, comparison…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid-State Spectra of Titanylphthalocyanine As Viewed from Molecular DistortionJ. Mizuguchi, G. Rihs, and H. R. KarfunkelCite this: J. Phys. Chem. 1995, 99, 44, 16217–16227Publication Date (Print):November 1, 1995Publication History Published online1 May 2002Published iniss…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidation of alkanes catalyzed by zeolite-encapsulated perfluorinated ruthenium phthalocyanines.Kenneth J. Balkus Jr., Mona Eissa, and Rosario LevadoCite this: J. Am. Chem. Soc. 1995, 117, 43, 10753–10754Publication Date (Print):November 1, 1995Publication History Published…
The morphology and crystalline microstructure of carbon-encapsulated nanoparticles produced in a Huffman-Kr\"atschmer fullerene reactor are studied systematically as a function of location within the reactor. X-ray powder diffraction and high-resolution transmission electron microscopy are used to characterize powder…
We studied liquid and vitreous ${\mathrm{SiO}}_{2}$ by performing first-principles molecular-dynamics simulations. Diffusion in the liquid is shown to occur through correlated jump events, which disrupt the network only for short time periods. The persistence of the network even at high temperatures is confirmed by th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFluorescence Dynamics of Noncovalently Linked Porphyrin Dimers, and AggregatesNakul C. Maiti, M. Ravikanth, Shyamalava Mazumdar, and N. PeriasamyCite this: J. Phys. Chem. 1995, 99, 47, 17192–17197Publication Date (Print):November 1, 1995Publication History Published online1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoordination of Cu Ions in High-Silica Zeolite Matrixes. Cu+ Photoluminescence, IR of NO Adsorbed on Cu2+, and Cu2+ ESR StudyJ. Dedecek, Z. Sobalik, Z. Tvaruazkova, D. Kaucky, and B. WichterlovaCite this: J. Phys. Chem. 1995, 99, 44, 16327–16337Publication Date (Print):Novem…
Without a magnetic field ${\mathrm{Pr}}_{0.7}$${\mathrm{Ca}}_{0.3}$${\mathrm{MnO}}_{3}$ exhibits three phase transitions: a change of the lattice symmetry at ${\mathit{T}}_{\mathit{B}}$=200 K, an antiferromagnetic ordering at ${\mathit{T}}_{\mathit{N}}$=140 K, and a canted antiferromagnetism at ${\mathit{T}}_{\mathrm{…
Metalloporphyrins undergo remarkable nonplanar distortions of the macrocycle that perturb the chemical and photochemical properties of these important protein cofactors. Further, the tertiary structure of the surrounding protein can manipulate these distortions as a means of regulating biological function. For cytochr…
A high resolution cross-linked PMMA resist has been synthesized and optimized for the generation of zone plate patterns down to 19 nm linewidth with e-beam lithography. This resist shows an increased resolution compared to PMMA for generating periodic structures with a line to space ratio of 1:1. Furthermore, we devel…
Characteristics of the oxide film formed on type 316 (UNS S31600) stainless steel (SS) in 288°C water under cyclic normal water chemistry (NWC) and hydrogen water chemistry (HWC) conditions were examined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Auger electron spectroscopy (AES…
Protruding yarns influence a fabric's properties and its end use. This paper discusses a new approach to measuring fabric appearance objectively using image processing techniques by Fourier transform analysis. Characteristics of the fabric surface such as directionality, density of yarns protruding from the fabric bod…
A simple model of bubble dynamics is constructed in which effects of thermal conduction and those of evaporation and condensation of water vapor are included. Results of numerical calculations when a bubble is irradiated by an ultrasonic wave reveal that the effect of thermal conduction is considerable. The calculated…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudy of the Photochromic Properties of Amorphous MoO3 Films Using Raman MicroscopyK. Ajito, L. A. Nagahara, D. A. Tryk, K. Hashimoto, and A. FujishimaCite this: J. Phys. Chem. 1995, 99, 44, 16383–16388Publication Date (Print):November 1, 1995Publication History Published on…
The deviation from stoichiometry, δ, in (CrxFe1−x)3−δO4 was measured by thermogravimetry at 1200 °C as a function of oxygen activity, aO2, and cationic composition, x. Moreover, cation tracer diffusion coefficients, DMe∗, for Me = Co, Cr, Fe and Mn, were experimentally determined using radioactive isotopes, Co-60, Cr-…
Suspensions of fumed silica exhibit a wide range of rheological properties, depending on the type of microstructure present. At high silica concentrations, the rheological behavior is ‘‘gel-like,’’ due to the formation of a network consisting of interconnected silica flocs. When large amplitude oscillatory preshear is…
Following the approach of Yu, Singh, and Krakauer [Phys. Rev. B 43 (1991) 6411] we extended the linearized augmented plane wave code WIEN of Blaha, Schwarz, and coworkers by the evaluation of forces. In this paper we describe the approach, demonstrate the high accuracy of the force calculation, and use them for an eff…