Dresden 2026 – scientific programme

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MA: Fachverband Magnetismus

MA 58: Computational Magnetism II

MA 58.3: Talk

Friday, March 13, 2026, 10:00–10:15, POT/0151

First principals calculation of current-induced spin-transfer and spin-orbit torques — •Tamás Véber¹, László Oroszlány^{1, 2}, Zoltán Tajkov^{1, 3}, Marcell Sipos¹, and Branislav K. Nikolic⁴ — ¹Eötvös Loránd University, Budapest, Hungary — ²Wigner Research Centre for Physics, Budapest, Hungary — ³HUN-REN Centre for Energy Research, Budapest, Hungary — ⁴University of Delaware, USA

The study of two dimensional magnetic materials - especially those possessing strong spin-orbit coupling - has great promise both in terms of providing new theoretical discoveries, as well as practical applications like smaller and more energy efficient magnetoresistive RAM (MRAM) technologies. The theoretical study of such systems has been well-established in recent decades. However, no single ecosystem exists in which all the simulation and post-processing steps can be performed in a cohesive way. We aim to fill this gap by providing a chain of cross-compatible software for this purpose - and where it is possible, do this in the form of open-source libraries. In this work we lay out such an implementation for obtaining current-induced spin torques - like spin-transfer torque (STT) and spin-orbit torque (SOT) - in the linear response regime from ab initio results. We demonstrate this method on a set of magnetic two dimensional few-layer materials, comparing our results with the literature.

Keywords: spin-transfer torque; spin-orbit torque; first principles; ab initio