DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2017 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

MA: Fachverband Magnetismus

MA 68: Poster 5

MA 68.9: Poster

Friday, March 24, 2017, 09:30–13:00, P2-OG4

Resonant Elastic X-ray Scattering (REXS) from the helical phase in Cu2OSeO3 at VEKMAG — •Simon Pöllath1, Chen Luo1, Martin Schön1, Florin Radu2, Hanjo Ryll2, and Christian Back11Universität Regensburg Institut für Experimentelle und Angewandte Physik, Regensburg, Deutschland — 2Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Deutschland

We report successful Resonant Elastic X-ray Scattering (REXS) experiments at the BESSY II PM2 VEKMAG beamline. We investigate a single crystalline Cu2OSeO3 sample grown by the chemical vapor transport method. The multiferroic insulator Cu2OSeO3 hosts a variety of magnetically modulated states at weak externally applied fields and below its critical Temperature. In the helical phase of the chiral magnet, the structural (001) Bragg peak shows a multiple splitting at the Cu L3 edge energy, caused by the modulated magnetic texture. Reciprocal space maps of the helical phase are obtained using a pin-hole diode. Additionally, the thermodynamic phase diagram is accessible from magnetization loops of the Bragg peak intensity. The vector magnet enables precise control of the modulation directions for future studies of conical and skyrmionic phases.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2017 > Dresden