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MA: Fachverband Magnetismus
MA 12: Skyrmions I
MA 12.8: Vortrag
Montag, 18. März 2024, 17:00–17:15, EB 301
Pressure tuning of the anomalous Hall effect in the antiskyrmion compound Mn1.4Pt0.9Ir0.1Sn — •Parul Devi1,2, Krishna Kant Dubey3, Moaz Elghazali1, Praveen Vir4, Marc Uhlarz1, Boby Joseph5, Chandra Shekhar4, Sanjay Singh3, Claudia Felser4, and Toni Helm1 — 1Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany — 2Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany — 3Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India — 4Max Planck Institute for Chemical Physics of Solids, 01187, Dresden, Germany — 5Elettra-Sincrotrone Trieste Strade Statale 14, Km 163.5 in Area Science Park, Basovizza 34149, Italy
We report on the pressure evolution of the anomalous Hall effect (AHE) in the antiskyrmion compound Mn1.4Pt0.9Ir0.1Sn. Herein, the observation of the isostructural phase transition in an antiskyrmion host tetragonal compound Mn1.4Pt0.9Ir0.1Sn at pressure * 20 GPa is presented. The magnetotransport and Hall-effect response of a single crystalline can be continuously tuned by the application of hydrostatic pressure * 30 GPa. We uncover a pressure-induced evolution at the low-temperature state of Mn1.4Pt0.9Ir0.1Sn into a distinct phase reminiscent of long-range ferromagnetism. This state is characterized by a steep negative magnetoresistance and an enhanced AHE with hysteretic behavior depending on the external magnetic field.
Keywords: Antiskyrmion; Pressure; Transsport; Anomalous Hall Effect; Magnetoresistance