Abstract
The magnetism of charge-stripe-ordered was studied by a combination of neutron diffraction, muon-spin relaxation , and bulk susceptibility. Long-range magnetic ordering was observed at a lower temperature by than by neutron diffraction, consistent with a glassy transition to the ordered phase. A second magnetic transition is detected by all techniques and is consistent with a spin reorientation. On cooling below the spins reorientate from lying away from the stripe direction at 70 K to at 10 K. The magnetic order was observed by neutron diffraction to have both three-dimensional and two-dimensional (without any correlation along the axis) characters. measurements confirmed this and are consistent with a single magnetically ordered spin-stripe phase. The effects of checkerboard charge order on the ordered phase and the characteristics of the phase diagram of the spin reorientation in charge-ordered are commented on.
- Received 24 June 2008
DOI:https://doi.org/10.1103/PhysRevB.78.184423
©2008 American Physical Society