5 papers
Electric-field induced trends of exchange interactions in transition-metal trilayers
Moinak Ghosh, Stefan Heinze, Souvik Paul
Using density functional theory, we have performed a systematic study of the Heisenberg pairwise exchange interaction and the beyond Heisenberg multi-spin higher-order exchange int…
Skyrmions in 2D chiral magnets with noncollinear ground states stabilized by higher-order interactions
Mathews Benny, Moinak Ghosh, Moritz A. Goerzen +4
Magnetic skyrmions are intriguing topological spin textures that have attracted great attention due to their potential for future spintronic devices. Skyrmions have so far been exp…
Platform for zero-field isolated skyrmions: 4/Co atomic bilayers on Re(0001)
Moinak Ghosh, Stefan Heinze, Souvik Paul
Using first-principles density functional theory (DFT) combined with atomistic spin simulations, we explore the possibility of realizing zero-field isolated skyrmions in three 4…
Entropy-driven phase transition in a non-collinear antiferromagnet due to higher-order exchange interactions
Leo Kollwitz, Moritz A. Goerzen, Bjarne Beyer +2
The triple-Q state arises due to the superposition of three symmetry equivalent spin spirals stabilized by higher-order exchange interactions. It has been predicted more than 20 ye…
Eigenmode following for direct entropy calculation and characterization of magnetic systems
Stephan von Malottki, Moritz A. Goerzen, Hendrik Schrautzer +2
We present an eigenmode following method (EMF) that has been developed for the numerical scanning of the potential energy surface and the direct calculation of entropy and pre-expo…