The dynamics of density fluctuations in arsenic trioxide has been investigated by Brillouin and photon correlation spectroscopy over the broad temperature range of 370-770 K. Over overlapping temperature ranges, a fast secondary and slow primary (α) relaxation were clearly resolved with a time separation of about ten orders in magnitude. The former observed in the GHz frequency range appears to be of a different origin from the β relaxation that is usually probed by dielectric spectroscopy in the glassy state. Conformational transitions between specific liquid structures are evoked to rationalize these fast density fluctuations in the supercooled amorphous state.
No takes yet. Share an insight, caveat, or question.
Yannopoulos et al. (1996) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: