Van der Waals Gaps in Sm1+x Ba2−x Cu3O y and Their Effect on SuperconductivitySpringer Science and Business Media LLC - Tập 38 Số 3 - Trang 162-167 - 2002
Nishchenko, M. M., Likhtorovich, S. P., Drozd, V. A., Nedil'ko, S. A., Baginskii, I. L.
We have used electron–positron annihilation to study superconducting cuprates Sm1+x Ba2−x Cu3O y . We have determined the average radii for oxygen ions in Sm1+x Ba2−x Cu3O y . Taking into account the ion coordinates and their radii, we have constructed a geometric model for the arrangement of copper and oxygen ions in CuO2 layers in the [b, c] plane, responsible for the superconductivity. From the...... hiện toàn bộ
Electron-impact studies of the vapors of cesium oxide and hydroxideSpringer Science and Business Media LLC - Tập 3 - Trang 126-129 - 1969
A. M. Emel'yanov, A. V. Gusarov, L. N. Gorokhov, N. A. Sadovnikova
The potentials at which the ions appear have been determined with a mass spectrometer. These potentials are used to calculate various thermodynamic quantities, including the dissociation energies of CsOH and Cs2O in the vapor state.
Effect of copper(II) ions on kinetics of ascorbic acid oxidation by methylene blueSpringer Science and Business Media LLC - Tập 30 - Trang 239-244 - 1995
P. E. Strizhak
A kinetic scheme is proposed for the reduction of methylene blue by ascorbic acid in the presence of copper(II) ions. The introduction of copper(II) ions increases the reaction rate, owing to the increased concentration of ascorbic acid radicals in the solution. It is shown that the inhibition of the reaction that is observed with low concentrations of copper(II) is a result of redox reactions pro...... hiện toàn bộ
Calculation of conformational equilibrium of biscarbocyanines from their absorption spectraSpringer Science and Business Media LLC - Tập 22 - Trang 409-417 - 1987
G. G. Dyadyusha, A. D. Kachkovskii, A. M. Kolesnikov, A. P. Kucherov
On the basis of the general characteristics of the interaction of two chromophores bound to the same molecule, we propose a method for calculating the conformer ratio from the absorption spectra of biscarbocyanines. The probability that the polymethine chain takes on a specific conformation may be calculated from the absorption spectral data of the investigated biscyanine, its analog with a fixed ...... hiện toàn bộ