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Session D33 - Postdeadline Poster Session II.
POSTER session, Monday evening, March 18
Exhibit Hall 2, America's Center
The MCXD temperature dependent studies of a single crystal of Nd_2Fe_14B (001) have been performed across the spin reorientation transition temperature, 120 K, with magnetic field of 0.5 T. The MCXD allowed us to study the magnetic behavior of individual atomic species in a complex material. The crystal was uniformly thinned with the (001) direction normal to the surface. In these studies we used the microfocussing property of the energy dispersive beamline in order to study small samples. The MCXD signal at the Nd L_2 absorption edge exhibits a change of about 10% across the reorientation temperature. The room temperature MCXD signal at the K edge of Fe in Nd_2Fe_14B (001) is three times higher than that for elemental Fe at field of 1 T. (Funded by the State of Illinois under HECA, NSF(DMR93-10656), DOE/MS(BES W-31-109-ENG-38), and DOE/MS(BES W-7405-ENG-82))