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Multiple energy sca...
Multiple energy scales in mesospin systems : The vertex-frustrated Saint George lattice
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- Stopfel, Henry (author)
- Uppsala universitet,Materialfysik
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- Arnalds, Unnar B. (author)
- Univ Iceland, Sci Inst, Reykjavik, Iceland.
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- Stein, Aaron (author)
- Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
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- Hase, Thomas P. A. (author)
- Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England.
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- Hjörvarsson, Björgvin (author)
- Uppsala universitet,Materialfysik
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- Kapaklis, Vassilios, 1978- (author)
- Uppsala universitet,Materialfysik
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(creator_code:org_t)
- American Physical Society, 2021
- 2021
- English.
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In: Physical Review Materials. - : American Physical Society. - 2475-9953. ; 5:11
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https://uu.diva-port... (primary) (Raw object)
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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