Exciton transport and orientationalglassification point in doped C60

Abstract

Below 95 K, pristine fullerite C60 is in the state of orientational glass with all molecules performing rotational oscillatory motion. However not all the mutual orientations of pairs of molecules are energetically favorable. Saturation of fullerite with gases changes the situation. There were controversies [1,2] concerning what happens with the orientational glass state when C60 is stuffed with, for instance, with CO or NO.