Bias Voltage Dependence of GMR in Insulating Granular Thin Films

Thickness dependence of magnetic blocking in granular thin films

ac conductance in granular insulating Co-ZrO2 thin films: A universal response

The ac conductance in granular insulating Co-ZrO2 thin films prepared by pulsed laser deposition is systematically studied as a function of the Co volume content x. An absorption phenomenon at low frequencies that mimics the universal response of disordered dielectric materials is observed in the range of metal content below the Co percolation threshold xp 0.35 in the so-called dielectric regim...

Transition from insulating to a non - insulating temperature dependence of the conductivity in granular metals

We consider interaction effects in a granular normal metal at not very low temperatures. Assuming that all weak localization effects are suppressed by the temperature we replace the initial Hamiltonian by a proper functional of phases and study the possibility for a phase transition depending on the tunneling conductance g. It is demonstrated for any dimension that, while at small g the conduct...

Nanomechanical properties of TiO2 granular thin films.

Post-deposition annealing effects on nanomechanical properties of granular TiO2 films on soda-lime glass substrates were studied. In particular, the effects of Na diffusion on the films' mechanical properties were examined. TiO2 photocatalyst films, 330 nm thick, were prepared by dip-coating using a TiO2 sol, and were annealed between 100 °C and 500 °C. Film's morphology, physical and nanomecha...

Thickness Dependence of Magnetic Blocking in Granular Thin Films with Interacting Magnetic Particles