Room-temperature ferromagnetism is exhibited by nanoparticles of a variety of inorganic
materials although they are intrinsically non-magnetic. Typical of such nanomaterials are the …

Holes bound to acceptor defects in oxide crystals are often localized by lattice distortion at
just one of the equivalent oxygen ligands of the defect. Such holes thus form small polarons …

Thin films of Sn O 2 prepared by pulsed-laser deposition on R-cut sapphire substrates
exhibit ferromagnetic properties at room temperature when they are doped with Cr, Mn, Fe …

We propose a model with few parameters for vacancy-induced ferromagnetism based on a
correlated model for oxygen orbitals with random potentials representing cation vacancies …

We present an ab initio study of the magnetism induced in Zr O 2 dioxide by substitution of
the cation by an impurity from the groups 1 A or 2 A of the Periodic Table (K and Ca). It is …

Magnetism without d-orbital electrons seems to be unrealistic; however, recent observations
of magnetism in non-magnetic oxides, such as ZnO, HfO2, and MgO, have opened new …

Positron annihilation spectroscopy has been used to explore the nature of defects and to
estimate the defect concentrations in ferromagnetic MgO nanoparticles. Our experimental …

Data for as-grown and partially oxidized samples of Ti: Al/sub 2/O/sub 3/grown by the
vertical-gradient-freeze technique show that the residual infrared absorption in these …

The d0 ferromagnetism of MgO containing neutral point defects has been investigated using
the first-principles method. The generalized gradient approximation (GGA), local density …

Titanium‐doped α‐Al2O3 exhibits a high‐temperature conductivity which is ionic at high
oxygen pressures and electronic at low oxygen pressures. Both are isotropic. The …