Geometrical frustration and competing orders in the dipolar trimerized triangular lattice

Kevin Hofhuis, Charlotte Petersen, Michael Saccone, Scott Dhuey, Armin Kleibert, Sebastiaan van Dijken, Alan Farhan

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Abstract

We introduce and explore low-energy configurations in two-dimensional arrays consisting of Ising-type dipolar coupled nanomagnets lithographically defined onto three-nanomagnet vertices arranged in a triangular coordination. Thus, the system is dubbed the trimerized triangular lattice. Employing synchrotron-based photoemission electron microscopy, we perform temperature-dependent magnetic imaging of moment configurations. These states are then characterized in terms of spin correlations and magnetic structure factors. The results reveal a competition between ferromagnetic and vortex dominated orders, which can be controlled by varying the relevant lattice parameter and the corresponding competing interactions.
Original languageEnglish
Article number014409
Pages (from-to)1-7
Number of pages7
JournalPhysical Review B (Condensed Matter and Materials Physics)
Volume104
Issue number1
DOIs
Publication statusPublished - 8 Jul 2021
MoE publication typeA1 Journal article-refereed

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