Study of Balance Equations for Hot-Electron Transport in an Arbitrary Energy Band (III)

By choosing an electron gas resting instead of drifting in the laboratory coordinate system as the initial state, the first order perturbation calculation of the previous paper (Phys. Stat. Sol. (b) 198, 785(1996)) is revised and extended to include the high order field corrections in the expression for the frictional forces and the energy transfer rates. The final expressions are formally the same as those in first order in the electric field, but the distribution functions of electrons appearing in them are defined by different expressions. The problems relative to the distribution function are discussed in detail and a new closed expression for the distribution function is obtained. The nonlinear impurity-limited resistance of a strong degenerate electron gas is computed numerically. The result calculated by using the new expression for the distribution function is quite different from that using the displaced Fermi function when the electric field is sufficiently high.Comment: 15 pages with 3 PS figures, RevTeX, to be published in Physica Status Solidi (b

μ-Cyanido-1:2κ2 N:C-tricyanido-2κ3 C-(rac-5,5,7,12,12,14-hexa­methyl-1,4,8,11-tetra­aza­cyclo­tetra­decane-1κ4 N,N′,N′′,N′′′)dinickel(II) N,N-di­methyl­formamide monosolvate hemi­hydrate

The two NiII atoms in the title complex, [Ni2(CN)4(C16H36N4)]·C3H7NO·0.5H2O, are bridged by a cyanide ion. The macrocycle folds around one NiII atom, which is five-coordinated in an NiN5 square-pyramidal geometry. The other NiII atom is surrounded by the cyanide ions in an NiN4 square-planar geometry. The dimethyl­formamide solvent mol­ecule is disordered over two positions in a 0.62 (1):0.38 (1) ratio and the water mol­ecule is disordered about a center of inversion. The dinuclear mol­ecule and solvent mol­ecules are linked by N—H⋯O, N–H⋯N and O—H⋯O hydrogen bonds, forming a three-dimensional network