Abstract
The magnetic structure of the localized- uranium intermetallic compound has been determined by means of a neutron diffraction experiment. Our data demonstrate that this compound has a collinear coupling of the sublattice ordering of the uranium spins on the and sites. We conclude that higher-order exchange and/or quadrupole interactions are necessary to stabilize this unique collinear structure. We discovered a new type of spin-flop transition against the uniaxial anisotropy induced by this collinear coupling.
- Received 28 December 2001
DOI:https://doi.org/10.1103/PhysRevLett.89.077202
©2002 American Physical Society