Susceptibility Discontinuity In Single-Crystal C60
Title - Alternative
Phys. Rev. Lett.
Orientational-Ordering Transition; Current Magnetic-Susceptibility; Icosahedral C-60; Spectroscopy; Buckminsterfullerene; Physics, Multidisciplinary
Magnetization of a large single C60 crystal was measured as functions of applied field and temperature. At T = 260 K, a discontinuity in susceptibility was observed. The relative change in total moment is 1.2%, independent of applied field to within experimental accuracy. This discontinuity is attributed to the change in the intramolecular geometry at the orientational order-disorder transition. This is the first experimental demonstration that the cooperative phase transition affects the magnetic susceptibility of a single molecule.
Physical Review Letters
Luo, W. L.; Wang, H.; Suoff, R. S.; Cioslowski, J.; and Phelps, S., "Susceptibility Discontinuity In Single-Crystal C60" (1994). Faculty Bibliography. 1559.