1202.4963 (P. Subedi et al.)

Transverse Field Ising Ferromagnetism in Mn$_{12}$-acetate-MeOH    [PDF]

P. Subedi, A. D. Kent, Bo Wen, M. P. Sarachik, Y. Yeshurun, A. J. Millis, S. Mukherjee, G. Christou

We report measurements of the magnetic susceptibility of single crystals of
Mn$_{12}$-acetate-MeOH, a new high-symmetry variant of the original single
molecule magnet Mn$_{12}$-acetate. A comparison of these data to theory and to
data for the Mn$_{12}$ acetate material shows that Mn$_{12}$-acetate-MeOH is a
realization of a transverse-field Ising ferromagnet in contrast to the original
Mn$_{12}$ acetate material, in which solvent disorder leads to effects
attributed to random field Ising ferromagnetism.

View original: http://arxiv.org/abs/1202.4963