We present an ab initio study of electronic correlation effects in a molecular cluster derived from the hexanuclear ferric wheel [ LiFe<Subscript>6</Subscript>(OCH<Subscript>3</Subscript>)<Subscript>12</Su bscript>-(dbm)<Subscript>6</Subscript>] PF<Subscript>6</Subscript>. The electronic and magnetic properties of this cluster have been studied with all-electron Hartree-Fock, full-potential density functional...</subscript></subscript><//su></subscript></subscript></subscript>

The phase diagram of the ABpC1−p mixed ferro-ferrimagnetic ternary alloy consisting of Ising spins sA=1, sB=32, and sC=12 is investigated by the use of a mean-field theory based on the Bogoliubov inequality for the Gibbs free energy. The effect of the single-ion anisotropy on the transition...

We have determined exactly the ground-state phase diagrams of the ABpC1−p ternary alloy consisting of Ising spins SA=32,SB=1, and SC=52 in the presence of a single-ion anisotropy. We have found that the ground-state phase diagrams include totally thirteen different ordered phases and one...

Despite the desperate general state of the UK’s engineering and manufacturing industry, great engineering innovation is still happening. This has again been highlighted by the diverse nature of the innovations from the four finalists for the 2003 MacRobert Award. Initiated in 1969, The Royal...

We have studied the magnetic properties of a mixed ferro–ferrimagnet composed of three different metal ions with spins 12,1, and 32 which includes both ferromagnetic and antiferromagnetic interactions. The system is considered in the frame of an Ising model in the effective-field theory with...

In the limit of strong magnetic field (H→∞) the closed set of equations for the time evolution of the n-point spin correlation functions has been derived for the case of one-dimensional diluted kinetic Ising model. The distribution of magnetic atoms and nonmagnetic impurities along the...