  This paper presents results for systems formed in a solid glassy state after
nanocrystallization process above the glass temperature. We analyze electric
conductivity and relaxation processes after such treatment under high
temperature (HT) and high pressure (HP-HT) as well. The latter leads to ca. 8%
increase of density, two decades (100) increase of electric conductivity as
well as qualitative changes in relaxation processes. The previtreous-type
changes of the relaxation time on cooling is analyzed by the use of
critical-like and the 'critical-activated' description. Presented results
correspond well with obtained for this material and shown in ref. [8]. The
evidence for pressure evolution of the glass and crystallization temperatures,
indicating the unique possibility of maxima and crossovers is also reported.
