Grain Decoupling at Low Magnetic Fields in Ceramic YBa2Cu3O7-δ

Periodicity, Electronic Structures, and Bonding of Gold Tetrahalides [AuX4]− (X = F, Cl, Br, I, At, Uus)

“…These species belong to the so-called “superhalogens” with the general formula MX n +1 that has been put forward by Gutsev and Boldyrev in 1981, in which a central metal M with a maximum valence of n is decorated with n + 1 halogen ligands, showing electron affinities (EAs) even larger than that of Cl (3.617 eV) and hence being potential strong oxidizers. Since then, several studies both experimentally and theoretically have been conducted to validate the prediction. − Extremely high vertical electron detachment energies (VDEs), all beyond 3.617 eV (Cl), were found for [AuX 4 ] − ; hence, these species are identified as typical superhalogens. Furthermore, extensive theoretical studies were conducted to understand the stable oxidation states of gold with a change of the halogen ligands.…”

A dielectric-free superconducting coaxial cable

“…For normal conductors where θ sc (T)=0 and σ n (T) is assumed large, the skin depth is √  2/ωµσ n (T) . For superconductors θ sc is the dominant term in equation (6). Thus, using equation (5), we find λ to be…”

“…For example, we assume that the new superconductor properties are sufficiently similar to those of previously known superconductors so much of the same theory is applicable. We will also assume that the material is homogeneous (unlike present materials [6,7]) and that it is never driven into a "mixed" state wherein non-superconducting regions are formed in the material. Consider now a basic macroscopic model of superconducting materials which will allow a quantitative examination of superconductor properties.…”