Michael F. Tweedle、Lon J. Wilson1976-08-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVariable spin iron(III) chelates with hexadentate ligands derived from triethylenetetramine and various salicylaldehydes. Synthesis, characterization, and solution state studies of a new 2T .dblarw. 6A spin equilibrium systemMichael F. Tweedle and Lon J. WilsonCite this: J.…
Metal-Catalyzed Oxygenation MechanismsMagnetism in coordination complexesMetal complexes synthesis and properties
B. A. Morrow、I. A. Cody1976-08-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared studies of reactions on oxide surfaces. 6. Active sites on dehydroxylated silica for the chemisorption of ammonia and waterB. A. Morrow and I. A. CodyCite this: J. Phys. Chem. 1976, 80, 18, 1998–2004Publication Date (Print):August 1, 1976Publication History Publishe…
Catalytic Processes in Materials ScienceGas Sensing Nanomaterials and SensorsCatalysis and Oxidation Reactions
P. Zoller、Peter Bolli、V. Pahud 等 4 位作者1976-08-01Review of Scientific Instruments
An apparatus for determining the specific volume of solid and liquid polymers as a function of pressure (to 2200 kg/cm2) and temperature (30–350 °C) has been constructed. It is based on Bridgman’s bellows method and makes use of a linear variable differential transformer (LVDT) mounted outside the pressure vessel to m…
Phase Equilibria and ThermodynamicsChemical Thermodynamics and Molecular StructureMaterial Dynamics and Properties
F. B. Khambatta、Frank P. Warner、Thomas P. Russell 等 4 位作者1976-08-01Journal of Polymer Science Polymer Physics Edition
Abstract Solvent‐cast films of blends of poly(ϵ‐caprolactone) (PCL) with poly(vinyl chloride) (PVC) were examined by low‐angle x‐ray scattering and by small‐angle light scattering. X‐ray scattering from crystalline compositions were analyzed using the Tsvankin–Buchanan technique and led to values of the repeat period…
biodegradable polymer synthesis and propertiesPolymer Science and PVCPolymer crystallization and properties
D. Michel、Montse Jorba、R. Collongues1976-08-01Journal of Raman Spectroscopy
Abstract Order‐disorder phenomena in binary oxides with fluorite‐related structures were studied by Raman spectroscopy. Raman spectra of disordered phases show broad bands, defects leading to selection rule breakdown. For well‐ordered structures, the scattering active modes observed are those allowed by crystal symmet…
Ga2O3 and related materialsLuminescence Properties of Advanced MaterialsMicrowave Dielectric Ceramics Synthesis
I. A. Blech、Conyers Herring1976-08-01OpenAlex
Stresses in aluminum thin films on TiN were studied in situ by transmission x-ray topography. Stress gradients were seen to build up in thin aluminum films during passage of electrical currents. The stresses are more compressive in the anode regions. These stress gradients seem to be a concomitant of the backflow resp…
Copper Interconnects and ReliabilityMetal and Thin Film MechanicsSemiconductor materials and devices
W. J. Jackson、H. F. Kuhfuss1976-08-01OpenAlex
Abstract High molecular weight copolyesters were prepared by the acidolysis of poly(ethylene terephthalate) with p ‐acetoxybenzoic acid and polycondensation through the acetate and carboxyl groups. The mechanical properties of the injection‐molded copolyesters containing 40–90 mole‐% p ‐hydroxybenzoic acid (PHB) were…
biodegradable polymer synthesis and propertiesSynthesis and properties of polymersAdvanced Polymer Synthesis and Characterization
Robin J. Speedy、C. Austen Angell1976-08-01OpenAlex
Using a capillary technique for small samples, the isothermal compressibility κT of water has been measured to −26°C. Accelerating increases of κT at the lower temperatures can be described by an expression of the form κT=Aεγ [where ε= (T−Ts)/Ts], which is known to describe anomalies encountered in the vicinity of a t…
Spectroscopy and Quantum Chemical StudiesMaterial Dynamics and PropertiesPhase Equilibria and Thermodynamics
Gerald V. Brown1976-08-01OpenAlex
Magnetic heat pumping can be made practical at room temperature by using a ferromagnetic material with a Curie point in or near the operating temperature range and an appropriate regenerative thermodynamic cycle. Rare earths are found to be much more effective in this application than transition elements, and measurem…
Magnetic and transport properties of perovskites and related materialsMagnetic Properties of AlloysAdvanced Thermodynamics and Statistical Mechanics
K. P. Belov、Anatolii K. Zvezdin、A. M. Kadomtseva 等 4 位作者1976-07-31Soviet Physics Uspekhi
This review treats the little-studied magnetic phase transitions of the order-order, spin-reorientation type, in which a rotation of the magnetization vector (or of die antiferromagnetism vector) with respect to the crystallographic axes occurs upon change of temperature, magnetic field, or external pressure. It prese…
Superconducting Materials and ApplicationsGeomagnetism and Paleomagnetism StudiesMagnetic Properties of Alloys
Wen‐Miin Liang、A R Beal1976-07-28Journal of Physics C Solid State Physics
A self-consistent formula, which corrects a persistent mistake in the literature, has been developed for the optical joint density-of-states (OJDS) function. A way of linking valence- and conduction-bands densities of states to produce an average density or optically linked states function (ADOLS) for comparison with…
Phase-change materials and chalcogenidesSolid-state spectroscopy and crystallographyCrystal Structures and Properties
J. W. Lynn、G. Shirane、M. Blume1976-07-19Physical Review Letters
We report magnetic-form-factor measurements for Ir in the cubic antiferromagnet ${\mathrm{K}}_{2}$Ir${\mathrm{Cl}}_{6}$ (${T}_{N}=3.05$ K). Even though the Ir ions lie on an fcc lattice and are surrounded by octahedra of Cl, the magnetization density deviates strongly from the cubic symmetry that the charge density sh…
Inorganic Fluorides and Related CompoundsOrganic and Molecular Conductors ResearchMagnetism in coordination complexes
P.R. Norton1976-07-19Physical Review Letters
The spectral response from shallow negative donor ions in silicon has been studied over a range of donor concentrations between 1\ifmmode\times\else\texttimes\fi{}${10}^{14}$ and 1\ifmmode\times\else\texttimes\fi{}${10}^{17}$ ${\mathrm{cm}}^{\ensuremath{-}3}$. At low donor concentrations the binding energy of the nega…
Electron and X-Ray Spectroscopy TechniquesSemiconductor materials and devicesGraphene research and applications
K. B. Lyons、P. A. Fleury1976-07-19Physical Review Letters
Use of a computer-assisted normalization procedure and a resonant reabsorption technique has permitted frequency resolution of two central peaks in the quasielastic-light-scattering spectrum of KTa${\mathrm{O}}_{3}$ in the 0 to 3 ${\mathrm{cm}}^{\ensuremath{-}1}$ range. The intensities, and the polarization, temperatu…
Acoustic Wave Resonator TechnologiesSolid-state spectroscopy and crystallographyPerovskite Materials and Applications
A. Kuhn、A. Chévy、R. Chevalier1976-07-16physica status solidi (a)
Relations for the extrapolation of interatomic distances in 2H β-type GaSexS1−x are given for 0 ≦ x ≦ 0.7. This method is based on experimental results and allows to determine these distances, if for the investigated crystal the chemical composition or the lattice parameters are known. The interatomic distance Ga–Ga =…
Chalcogenide Semiconductor Thin FilmsCrystal Structures and PropertiesSolid-state spectroscopy and crystallography
K. P. Belov、A. M. Kadomtseva、N. M. Kovtun 等 6 位作者1976-07-16physica status solidi (a)
An investigation is made of magnetic, magnetoelastic, and elastic properties of erbium orthoferrite in the region of the phase transitions. The first and the second magnetoelastic constants of this orthoferrite, and the first and the second anisotropy constants of the iron sublattice are determined. It is shown that t…
Magnetic Properties and ApplicationsMultiferroics and related materialsMagnetic properties of thin films
A. Magerl、B. Berre、G. Alefeld1976-07-16physica status solidi (a)
By ultrasonic methods the elastic constants of V, Nb, and Ta are determined at room temperature after loading with hydrogen and deuterium. For Nb and Ta also the change of the temperature dependence of the elastic constants on alloying are determined up to 300°C. All measurements are performed in the cubic α-phases. T…
Nuclear Materials and PropertiesHydrogen embrittlement and corrosion behaviors in metalsMaterial Properties and Failure Mechanisms
G. Chapuis、R. Kind、H. Arend1976-07-16physica status solidi (a)
The perovskite-type layer structure compound (CH3NH3)2CdCl4 exhibits an unusual phase sequence:
Perovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyCrystal Structures and Properties
J. Y. Lee、Max T. Rogers1976-07-15The Journal of Chemical Physics
Hyperfine coupling elements, energy levels, and ESR transition frequencies have been computed for the methyl radical taking into account the large anisotropy of the proton hyperfine couplings. The interpretation of low-temperature ESR and ENDOR spectra of methyl radical is discussed with particular attention to the tu…
Electron Spin Resonance StudiesSolid-state spectroscopy and crystallographyMolecular Spectroscopy and Structure
Chris. Cheng、Paul B. Dorain1976-07-15The Journal of Chemical Physics
The optical spectra of single crystals of Cs2NaPrCl6 are reported. A complete f2 analysis gives the parameters: F2=302.0 cm−1, F4/F2=0.1600, F6/F2=0.01596, ξ4f=754.8 cm−1, α=19. cm−1, A4〈r4〉=288.6 cm−1 and A6〈r6〉=39.6 cm−1. A comparison of these parameters with those of the free Pr+3 ion indicates a covalency of 3%. T…
Luminescence Properties of Advanced MaterialsOptical properties and cooling technologies in crystalline materialsSolid-state spectroscopy and crystallography