We performed the polarized neutron diffraction measurements in phase II of CeB6 to observe the magnetic form factors. By the Maximum Entropy Method (MEM), we obtained the unexpected spin density distribution in CeB 6. We clearly observed the existence not only at Ce site but also at between B6 octahedral and at the center of triangle bonding ]in the B6 octahedral. This is the first evidence that the magnetic moments are located between the Borons.
- Polarized neutron diffraction
- Quadrupolar ordering
- Spin density distribution