Materials Literature
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The nature of the five-fold surface of Al(70)Pd(21)Mn(9) has been investigated using scanning tunneling microscopy. From high resolution images of the terraces, a tiling of the surface has been constructed using pentagonal prototiles. This tiling matches the bulk model of Boudard et. al. (J. Phys.: Cond. Matter 4, 101…
Cyano-bridged bimetallic hybrid Prussian Blue one- to three-dimensional (1D-3D) coordination polymers based on [M(CN)6]3- (M = Fe, Cr, Mn) have attracted great attention because of their rich and interesting structures and magnetic behaviors. The previous study implies that increasing dimensionality may enhance and im…
Short discussion trying to explain, why superconductivity revealed for some diborides is not always confirmed in experiments of different research groups.
This comment concerns the homogenization of 2D dielectric photonic crystals, and the fact that the limits $k\to 0$ ($k$ is the Bloch vector) and $ε\to +\infty $ do not commute for $p$-polarized waves
We investigate the mechanism of the resonant X-ray scattering on the Ti $K$ edge region of YTiO$_3$ using the band structure calculation combined with the local density approximation. A large intensity is obtained for the orbital superlattice spots. The calculated spectra consist of several peaks as a function of phot…
Using sub-picosecond optical pump-probe techniques, coherent zone-folded longitudinal acoustic phonons (ZFLAPs) were generated and controlled in an InGaN multiple quantum well structure. A one-pump, one-probe differential transmission technique revealed that carriers injected near the barrier band edge were quickly ca…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChanges in Biomolecular Conformation Seen by Small Angle X-ray ScatteringSebastian DoniachView Author Information Departments of Applied Physics and Physics, Stanford University, Stanford California 94305 Cite this: Chem. Rev. 2001, 101, 6, 1763–1778Publication Date (Web):Ap…
The interaction of a laser-induced cavitation bubble with an elastic boundary is investigated experimentally by high-speed photography and acoustic measurements. The elastic material consists of a polyacrylamide (PAA) gel whose elastic properties can be controlled by modifying the water content of the sample. The elas…
The interaction of a laser-induced cavitation bubble with an elastic boundary and its dependence on the distance between bubble and boundary are investigated experimentally. The elastic boundary consists of a transparent polyacrylamide (PAA) gel with 80% water concentration with elastic modulus E = 0.25 MPa. At this E…
The crystal structure of human Mtcp1 was determined at 2 A resolution after the X-ray diffraction limit was improved by post-crystallization soaking in 2.0 M ammonium sulfate for 1-5 months. The effects of varying the ammonium sulfate concentration and addition of polyethylene glycol to the soaking solution were exami…
We conducted a 7-week laboratory incubation experiment to evaluate the effect of leaching on net C and N mineralisation in soils. The soils were collected from adjacent fields of long-term pasture and maize, where each field contained an Inceptisol and an Andisol. The concentration of clay mineral was 200 g/kg halloys…
We report the optical oscillations with monolayer periodicity observed by an oblique-incidence reflectance difference (OIRD) technique on the epitaxial growth of Nb-doped SrTiO 3 on SrTiO 3 substrate. The periodicity was verified by the simultaneously measured reflection high-energy electron diffraction intensity osci…
Reactions of [M(OEP)(OTf)] (M = Fe or Cr, OEP = octaethylporphyrinate, OTf = triflate) with [Re(N2)(PMe2Ph)4Cl] afford [(OEP)M(N2)Re(PMe2Ph)4Cl][OTf]. The structure of the heterometallic Fe/Re dinitrogen complex has been established by X-ray crystallography.
Chalcogenide glasses with composition $0.5[(1\ensuremath{-}x){\mathrm{Rb}}_{2}\mathrm{S}\ensuremath{-}x{\mathrm{Ag}}_{2}{\mathrm{S}]\ensuremath{-}0.5\mathrm{GeS}}_{2},$ $0<~x<~1,$ were prepared and their ion transport properties and glass transition temperatures were found to show clear manifestations of the mix…
Effects of oxygen nonstoichiometry on stabilities of the antiferromagnetic (AF) phases of ${\mathrm{CuFeO}}_{2}$ with a delafossite-type structure have been investigated. Temperature dependence of the magnetic susceptibility between 5 and 300 K in 0.1 T parallel to the c axis, and magnetic-field dependence of the magn…
[Gd(DMF)2(H2O)3Cr(CN)6]·H2O is the first lanthanide−transition metal array with a flat two-dimensional brick-wall-like molecular structure. The antiferromagnetic coupling between the adjacent Gd−Cr ions leads to intralayer ferrimagnetic correlation due to the noncancellation of spins. The long-range magnetic ordering…
A glasshouse experiment was conducted with 41 surface and 8 subsurface soils to measure their potassium (K) supply capacities and K depletion of soils by ryegrass growth for 260 days and harvesting at ~40-day intervals. Dry matter yield ranged from 0.22 g to 25.4 g/kg soil, cumulative K uptake ranged from 0.006 to 1.4…
The first fully structurally characterized ternary europium palladium hydrides (deuterides) are reported. The most Eu rich compound is Eu(2)PdD(4). Its beta-K(2)SO(4) type structure (space group Pnma, a = 749.47(1) pm, b = 543.34(1) pm, c = 947.91(1) pm, Z = 4) contains tetrahedral 18-electron [PdD(4)](4)(-) complex a…
The structure of a tetragonal crystal form of thiostrepton has been solved using the anomalous dispersive effects of five S atoms from high-redundancy data collected to 1.33 A resolution at the Cu Kalpha wavelength. Data measured to 1.02 A resolution with a synchrotron source were used for refinement. Details of the m…
A diffraction data set has been collected from a blood coagulation factor XIII-Ca(2+) complex crystal at the X-ray diffraction beamline of the ELETTRA synchrotron (Trieste, Italy) at a wavelength of 2.6 A. The data collection could be carried out using the beamline as is, without making any time-consuming changes to t…