In the asymptotic limit, the interlayer exchange coupling decays as D <Superscript>−2</Superscript>, where D is the spacer thickness. A systematic procedure for calculating the preasymptotic corrections, i.e., the terms of order D <Superscript>−n </Superscript> with n ≥ 3, is presented. The temperature dependence of the preasymptotic...</superscript></superscript>

Electroluminescence (EL) of bilayer organic light-emitting diodes based on N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-biphenyl)-4,4'-diamine (TPD) and 2-(4'-biphenyl)-5-(4”-tert-butylphenyl)-1,3,4-oxadiazole (PBD) were reported. The EL spectra of bilayer device ITO/TPD/PBD/Al consist of...

We analytically evaluate charge and spin density response functions of the clean two-dimensional electron gas with Rashba spin-orbit coupling at finite momenta and frequencies. On the basis of our exact expressions we discuss the accuracy of the long-wavelength and the quasiclassical...

We report on room temperature ferromagnetic resonance (FMR) studies of [ t Co|2t Ni]  × N sputtered films, where 0.1 ≤ t ≤ 0.6 nm. Two series of films were investigated: films with the same number of Co|Ni bilayer repeats (N=12), and samples in which the overall magnetic layer thickness...

Charge carriers bulk recombination instead of forming electroplex after their tunneling through a hole-blocking layer, i.e. 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), in organic electroluminescence (EL) device ITO/poly-(N-vinyl-carbazole)(PVK)/BCP/tris(8-hydroxyquinoline) aluminum...</subscript>

The effects of Si nanocluster (Si-nc) size on the energy transfer rate to Er ions were investigated through studies made on appropriate configurations of mutilayers (MLs) consisting in about 20 periods of Er-doped Si-rich SiO<Subscript>2</Subscript>/SiO<Subscript>2</Subscript>. These MLs were deposited by reactive magnetron sputtering at...</subscript></subscript>