Dielectric properties of an organic ferroelectric of bromide diisopropylammonium embedded into the pores of nanosized AlO films.

The study presents experimental results for investigating linear and nonlinear dielectric properties of nanocomposites based on bromide diisopropylammonium (CHNBr, DIPAB) and aluminum oxide films (AlO) with pore diameter of 330, 100 and 60 nm. It was indicated that the phase transition was blurred and shifted toward lower temperatures. This anomaly became more significant with decreasing pore size.

Phase transitions in K(1-x)Na(x)NO(3) embedded into molecular sieves.

Dielectric studies of molecular sieves MCM-41 filled with K(1-x)Na(x)NO(3) salts (x = 0, 0.05 and 0.10) were carried out and compared with results obtained for their bulk counterparts.