2014 年 24 巻 4 号 p. 262-266
Antiferromagnetic phase in the highly H-doped LaFeAsO has been investigated by neutron powder diffraction at J-PARC MLF. The characteristic antiferromagnetic structure, the structural phase transition immediately above TN, and the established phase diagram are discussed. Measurements with multiprobe of muon, neutron, and synchrotron X-ray promoted present study.