Dresden 2011 – wissenschaftliches Programm
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KR: Fachgruppe Kristallographie
KR 5: Poster Multiferroics (Joint Session of MA, DF, DS, KR, TT)
KR 5.55: Poster
Dienstag, 15. März 2011, 10:45–13:00, P2
Resonant Soft X-ray Scattering (RSXS) Studies on Multiferroic YMn2O5 with six circle diffractometer and CCD-camera — •Sven Partzsch1, Stuart Wilkins2, John Hill2, Enrico Schierle3, Eugen Weschke3, Dmitri Souptel1, Bernd Büchner1, and Jochen Geck1 — 1IFW Dresden — 2BNL Upton — 3Helmholz-Zentrum Berlin
RMn2O5 (R = Y, rare earth, Bi) are multiferroics there RSXS at the magnetic modulation vector (1/2, 0, 1/4) provide additional information to neutrons. By tuning the energy to the Mn L- and O K-edges, respectively, the experiment becomes element selective. To see which scattering is proportional to the electric polarization the integrated intensity is important. For this we performed experiments at X1A2 (Tardis), NSLS, BNL, Upton, New York, USA. Four moving motors in six circle geometry and a CCD-camera provided the integrated intensity and all widths in three principal directions with one scan (set of images). Thus this technique is practical to study strongly correlated electron systems.