Abstract
The magnetic structures of the low-carrier-system CeP are investigated under magnetic fields up to 12.5 T with the field H ∥[1 \bar1 0] and up to 14 T with H ∥[0 0 1] by synchrotron X-ray diffraction utilizing the unique relationship between the magnetic structure and lattice modulation in this system. The magnetic phases corresponding to the modulation wave vectors k =2/11, 2/10, 2/9 and 2/8 are observed at low temperatures. The magnetic phases with k =2/8 (↑↑°°°°°° or ↑↑←→←→←→), k =2/9 (↑↑°°°°°°° or ↑↑←→←→←→←) and k =2/11 (↑↑°°°°°°°°°) are the new phases under magnetic fields found in the present work. The result demonstrates that magnetic fields play a role similar to high pressure to realize the unique magnetic structure and its multistep change in CeP. This fact indicates the importance of the magnetic polaron effect mediated by the p – f mixing effect in the system.
Published Version
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