We report the rich magnetic behaviour of Sr2CoNb1-xTixO6 (0 ≤ x ≤ 0.5) oxides as a result of their complex microstructure. Although these oxides show an average simple-cubic perovskite structure, they present a flexible microstructure due to short-range ordering between Co/Ti and Nb cations in the perovskite B-sites. The microstructure consists of double-cubic perovskite domains grown in a simp...

We would like to study the space of smooth cubic surfaces in P when each surface is considered only up to projective linear transformation. Brundu and Logar ([1], [2]) define an action of the automorphism group of the 27 lines of a smooth cubic on a certain space of cubic surfaces parametrized by P in such a way that the orbits of this action correspond bijectively to the orbits of the projecti...

A series of novel hierarchical nanoporous microstructures have been synthesized through one-step chemical reduction of micron size Cu2O and Co3O4 particles. By controlling the reduction time, non-porous Cu2O microcubes sequentially transform to nanoporous Cu/Cu2O/Cu dented cubic composites and hollow eightling-like Cu microparticles. The mechanism involved in the complex structural evolution is...

The magnetic response of valence electrons in doped gold-based M@Au8L8q superatoms (M = Pd, Pt, Ag, Au, Cd, Hg, Ir, and Rh; L PPh3; q 0, +1, +2) is studied by calculating the gauge including magnetically induced currents (GIMIC) framework auxiliary density functional theory. systems include 24 different combinations dopant, total cluster charge, structure (cubic-like or oblate). (both diatropic...

Seven points chosen at random on a twisted cubic curve, like six points on a conic in the plane, give rise to a distinctive theorem; for as five points determine a conic, so the twisted cubic is determined by six points. In the case of the conic, this is the theorem of the Pascal hexagon, six points in a definite order leading to a definite line. Conic and line remaining fixed, the hexagon may ...

In this work firstly CoFe2O4 nanoparticles were synthesized via a hydrothermal method. The temperature, surfactant and capping agent effects on the size of CoFe2O4 nanoparticles were investigated. 2-hydroxyacetophenone used as a good capping agent to produce cubic-like nanostructure. When SDBS used as surfactant, particles had spherical morphology. Nanoparticle was studied by scanning electron ...

We report on some results concerning the effects of cubic anisotropy and quenched un-correlated impurities on multicomponent spin models. The analysis of the six-loop three-dimensional series provides an accurate description of the renormalization-group flow. 1 Cubic-symmetric models The magnetic interactions in crystalline solids with cubic symmetry like iron or nickel are usually modeled usin...

In this short note we would like to show the relation between the cubic open string field theory for N D-instantons and the string field theory in the presence of the background B field.

We explore the rarefaction wave-like solutions to a model Hamiltonian dynamical system recently derived to study frequency cascades in the cubic defocusing nonlinear Schrödinger equation on the torus.