SKM 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 12: Skyrmions II
MA 12.5: Vortrag
Dienstag, 28. März 2023, 10:30–10:45, HSZ 02
Evidence for Chiral Soliton Lattice formation in the Antiskyrmion compound Mn1.4PtSn — •M. Winter1,2,3, M. Rahn4, D. Wolf3, S. Schneider2, M. Valvidares5, C. Shekar1, P. Vir1, B. Achinuq6, H. Popescu7, T. Helm8, G. Van der Laan9, T. Hesjedal6, B. Rellinghaus2, and C. Felser1 — 1MPI CPfS, Dresden, Germany — 2DCN, TU Dresden, Germany — 3IFW, Dresden, Germany — 4IFMP, TU Dresden, Germany — 5ALBA Synchrotron, Barcelona, Spain — 6Clarendon Laboratory, University of Oxford, UK — 7Synchrotron SOLEIL, Saint-Aubin, France — 8HZDR,Dresden,Germany — 9Diamond Light Source, Didcot, UK
The Antiskyrmion (aSks) compound Mn1.4PtSn has a rich magnetic phase diagram that strongly depends on strength and orientation of an external magnetic field as well as on the history of its application. We conducted combined experiments of resonant elastic x-ray scattering (REXS) and Lorentz transmission electron microscopy (LTEM) on an identical lamella of Mn1.4PtSn. Our complementary approach allows for an unambiguous correlation of the real space magnetic textures in Mn1.4PtS, i.e., helices, non-topological (NT) bubbles and aSks as determined by LTEM and transitions between them with their corresponding k space scattering patterns obtained by REXS. The octupole vector magnet of the REXS setup enabled us to gain extended information on the dependence of the phase diagram of Mn1.4PtSn on the direction of the external field, revealing the interplay of chiral soliton lattices, NT bubbles, the conical phase and aSks. Part of this work is gratefully supported by DFG within SPP 2137.