Abstract
An experimental system of X-ray magnetic diffraction (XMD) for ferromagents is established at the Photon Factory in KEK to realize high photon-counting rate up to 105 cps and high magnetic-field strength over 20 kOe. These performances have been achieved by upgrading (i) an X-ray detector and photon-counting apparatus and (ii) an electromagnet, respectively. The spin magnetic form factor of ferromagnetic YTiO3 for 30 reciprocal lattice points of hk0 and 0kl series has been measured by using the XMD system in various geometries including magnetic-field direction parallel to the hard axis. The result is in good agreement with that of the neutron diffraction experiment. This fact shows that the system is valuable for measuring magnetic form factor of ferromagnets. In this paper we report the details of the system.
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