X-ray diffraction technique to observe magnetostriction and magnetization at coextensive volumes of iron

We present a new technique for observing both magnetostriction and magnetization as a function of applied magnetic field strength. They are simultaneously measured by the same X-ray probes with a goniometer at exactly coextensive specimen volumes. The measurements yield experimental magnetostriction curves during a cyclic magnetization process in iron (100) single-crystal specimen at room temperature. The technique is a new tool to investigate magnetic properties within X-ray extinction depth from the surface.