interanion

This experimental behavior is in stark contrast to the fcc A 3 C 60 systems, where the decrease of T c with increasing pressure is driven by the accompanying decrease of N ( E F ) as the interanion orbital overlap increases, and has its origin in the dominance of correlations in the parent AFI state.

2009 March 20, Yasuhiro Takabayashi et al., “The Disorder-Free Non-BCS Superconductor Cs3C60 Emerges from an Antiferromagnetic Insulator Parent State”, in Science, volume 323, number 5921, →DOI, pages 1585–1590