Dynamical heterogeneity in a- and ß-relaxations of glass-forming liquids as seen by deuteron NMR

Abstract

2H NMR experiments in deuterated supercooled liquids are discussed in relation with α- and β-relaxation heterogeneity with particular emphasis on the latter. The results are exemplified using data from deuterated ortho-terphenyl, propylene carbonate and toluene where partial deuteration provides additional information on intramolecular motion.