Multiple energy-scales in vertex-frustrated mesospin systems
| Autor: | Stopfel, Henry, Arnalds, Unnar B., Stein, Aaron, Hase, Thomas P. A., Hjörvarsson, Björgvin, Kapaklis, Vassilios |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Phys. Rev. Materials 5, 114410 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevMaterials.5.114410 |
| Popis: | The interplay between topology and energy-hierarchy plays a vital role in the collective magnetic order in artificial ferroic systems. Here we investigate, experimentally, the effect of having one or two activation energies of interacting Ising-like magnetic islands -- mesospins -- in thermalized, vertex-frustrated lattices. The thermally arrested magnetic states of the elements were determined using synchrotron-based magnetic microscopy after cooling the samples from temperatures above the Curie temperature of the material. Statistical analysis of the correlations between mesospins across several length-scales, reveals changes in the magnetic order, reflecting the amount of ground state plaquettes realized for a vertex-frustrated lattice. We show that the latter depends on the presence, or not, of different activation energies. Comment: 10 pages, 8 figures |
| Databáze: | arXiv |
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