Preferred Label : Verwey transition;
IUPAC definition : An electron-ordering transition occurring in a mixed-valent system that results in
an ordering of formal valence states in the low-temperature phase. Example: The prototype
system, first identified by Verwey, is the ferrospinel magnetite, Fe sup 3 /sup [Fe
sup 3 /sup Fe sup 2 /sup ]O sub 4 /sub in which an ordering of Fe sup 3 /sup
and Fe sup 2 /sup ions within octahedral sites is thought to occur below T v 120
K.;
Origin ID : V06612;
See also
An electron-ordering transition occurring in a mixed-valent system that results in
an ordering of formal valence states in the low-temperature phase. Example: The prototype
system, first identified by Verwey, is the ferrospinel magnetite, Fe sup 3 /sup [Fe
sup 3 /sup Fe sup 2 /sup ]O sub 4 /sub in which an ordering of Fe sup 3 /sup
and Fe sup 2 /sup ions within octahedral sites is thought to occur below T v 120
K.
