Magnetothermopower of nanocomposites in the vicinity of the percolation threshold

Structural changes in nanogranulated (Co40Fe40B20) x (CaF2)100 − x films

“…Nanogranulated metal-dielectric com posites representing metal granules with the diameter of several nanometers chaotically distributed in the bulk of a dielectric matrix hold a significant place among such systems. Being characterized by tunneling electron transport at room temperature, pronounced dimensional effects, and unusual magnetic properties varying from a superparamagnetic to a magnetically ordered state depending on the metal phase concen tration, these media turned out to be extremely inter esting for fundamental physical investigations [1][2][3].…”