Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Page Number
104427
Volume
75
Issue
10
Abstract
Polarized neutron diffraction experiments on an organic magnetic material reveal a highly skewed distribution
of spin density within the magnetic molecular unit. The very large magnitude of the observed effect is due
to quantum spin fluctuations. The data are in quantitative agreement with direct diagonalization results for a
model spin Hamiltonian, and provide insight on the actual microscopic origin of the relevant exchange
interactions.