Dresden 2026 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 35: Spintronics (other effects) (joint session MA/TT)
MA 35.5: Vortrag
Mittwoch, 11. März 2026, 16:15–16:30, POT/0112
Alloying-Driven Modifications of the Magnetic Properties in Transition-Metal Iodides — •Paulina Jureczko1,2 and Martin Gmitra1,3 — 1Institute of Experimental Physics, Slovak Academy of Sciences, 04001 Košice, Slovakia — 2Institute of Physics, University of Silesia in Katowice, 41-500 Chorzów, Poland — 3Institute of Physics, Pavol Jozef Šafárik University in Košice, 04001 Košice, Slovakia
Single-layer transition-metal dihalides have recently emerged as a platform for exploring two-dimensional magnetism and topology. Using density-functional theory, we investigate the electronic and magnetic properties of MI2 monolayers and alloyed M1−xNxI2 systems, where M and N represent Mn, Fe, Co, Ni. We analyze how chemical substitution modifies exchange interactions and spin-orbit-driven topological features by computing the Berry curvature and Chern numbers. The results reveal that alloying provides an efficient route for tuning magnetic anisotropy and topological phases in transition-metal iodides, underscoring their potential relevance for 2D spintronics.
This work has been funded by the EU NextGenerationEU through the Recovery and Resilience Plan for Slovakia under the project No. 09I05-03-V02-00071.
Keywords: spintronics; magnetizm; 2d materials; topology