Ya. Osip'Yan et al., Sign reversal of the magnetoplastic effect in C-60 single crystals during the sc-fcc phase transition, PHYS SOL ST, 43(7), 2001, pp. 1389-1392
It is found that the magnetoplastic effect in C-60 single crystals in a pul
sed magnetic field with induction larger than 10 T changes its sign in the
vicinity of the phase transition at T-c = 250-260 K: crystal strengthening
is observed for T < T-c, and softening occurs for T > T-c. This indicates a
change in the crystal lattice structure in the magnetic field. (C) 2001 MA
IK "Nauka/Interperiodica".