Energetics and thermodynamics of bilayer rectangular artificial spin ices
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912611992338432 |
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| author | Oliveira, Gabriel A. Moura-Melo, Winder A. Pereira, Afranio R. Nascimento, Fabio S. |
| author_facet | Oliveira, Gabriel A. Moura-Melo, Winder A. Pereira, Afranio R. Nascimento, Fabio S. |
| contents | Bilayer rectangular artificial spin ices (BRASIs) with distinct aspect ratios, $γ$, are considered. Namely, we investigate how the underlying geometry modifies the interaction between two rectangular artificial spin ice layers separated by a height offset, $h$, whenever compared to the square case. Actually, rectangular layers interact by means of a Buckingham-like potential, whereas in the square case, one has an algebraic (van der Walls-like) interaction. In addition, Moiré patterns for BRASIs are less definite than for the square bilayer. We also deal with their basic thermodynamics, showing the behavior of the specific heat as a function of temperature and $γ$ for a number of height offsets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_23390 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Energetics and thermodynamics of bilayer rectangular artificial spin ices Oliveira, Gabriel A. Moura-Melo, Winder A. Pereira, Afranio R. Nascimento, Fabio S. Other Condensed Matter Bilayer rectangular artificial spin ices (BRASIs) with distinct aspect ratios, $γ$, are considered. Namely, we investigate how the underlying geometry modifies the interaction between two rectangular artificial spin ice layers separated by a height offset, $h$, whenever compared to the square case. Actually, rectangular layers interact by means of a Buckingham-like potential, whereas in the square case, one has an algebraic (van der Walls-like) interaction. In addition, Moiré patterns for BRASIs are less definite than for the square bilayer. We also deal with their basic thermodynamics, showing the behavior of the specific heat as a function of temperature and $γ$ for a number of height offsets. |
| title | Energetics and thermodynamics of bilayer rectangular artificial spin ices |
| topic | Other Condensed Matter |
| url | https://arxiv.org/abs/2509.23390 |