Synchrotron X-ray Diffraction Studies of α-Gd_2S_3(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

概要

論文の詳細を見る
Non-resonant X-ray Bragg diffraction measurements on a small, single crystal of α-Gd_2S_3 in zero and non zero applied magnetic fields are reported. From independent neutron diffraction measurements, the magnetic unit cell is found to be the same as the chemical unit cell. Therefore, the observation of magnetic X-ray diffraction by this compound is particularly challenging. We observe a change in the intensity around the Neel temperature in zero field, as well as around the phase boundaries at finite magnetic fields. The X-ray diffraction intensity is calculated based on the previously established magnetic structure. A reasonable amount of intensity from the interference between magnetic and charge scattering is predicted, and it provides a satisfactory account of our observations.
社団法人日本物理学会の論文
2005-05-15