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Multiple energy scales in mesospin systems : the vertex-frustrated Saint George lattice
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Stopfel, Henry, Arnalds, Unnar B., Stein, Aaron, Hase, Thomas P. A., Hjörvarsson, Björgvin and Kapaklis, Vassilios (2021) Multiple energy scales in mesospin systems : the vertex-frustrated Saint George lattice. Physical Review Materials, 5 (11). 114410. doi:10.1103/physrevmaterials.5.114410 ISSN 2475-9953.
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Official URL: https://doi.org/10.1103/physrevmaterials.5.114410
Abstract
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.
Item Type: | Journal Article | |||||||||||||||||||||||||||
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Subjects: | Q Science > QA Mathematics Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Ferromagnetic materials, Antiferromagnetism, Ising model, Condensed matter, Lattice theory | |||||||||||||||||||||||||||
Journal or Publication Title: | Physical Review Materials | |||||||||||||||||||||||||||
Publisher: | American Physical Society (APS) | |||||||||||||||||||||||||||
ISSN: | 2475-9953 | |||||||||||||||||||||||||||
Official Date: | 30 November 2021 | |||||||||||||||||||||||||||
Dates: |
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Volume: | 5 | |||||||||||||||||||||||||||
Number: | 11 | |||||||||||||||||||||||||||
Article Number: | 114410 | |||||||||||||||||||||||||||
DOI: | 10.1103/physrevmaterials.5.114410 | |||||||||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||||||||
Date of first compliant deposit: | 8 February 2022 | |||||||||||||||||||||||||||
Date of first compliant Open Access: | 9 February 2022 | |||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
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