Abstract
The internal magnetic field in a ferromagnetic compound, Y2Co12P7 with TC = 150 K, was studied with µ+SR using a powder sample down to 2 K. The wTF-µ+SR measurements revealed the presence of a sharp magnetic transition at TC = 151 K, and the ZF-µ+SR measurements clarified the formation of static magnetic order below TC. The presence of two muon spin precession signals in the ZF-µ+SR spectrum below TC indicates the existence of the two different muon sites in the lattice. By considering the muon sites and local spin densities at the muon sites predicted with DFT calculations, the ordered magnetic moments of Co were successfully determined.
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