Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion
Geometric effects in curvilinear nanomagnets can enable chiral, anisotropic, and even magnetoelectric responses. Here, we study the effects of magnetic frustration in curvilinear (quasi-)one-dimensional magnets represented by spin chains arranged along closed space curves of constant torsion. Consid...
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013088 |
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| _version_ | 1832590472559722496 |
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| author | Oleksandr V. Pylypovskyi Enrico Di Benedetto Carmine Ortix Denys Makarov |
| author_facet | Oleksandr V. Pylypovskyi Enrico Di Benedetto Carmine Ortix Denys Makarov |
| author_sort | Oleksandr V. Pylypovskyi |
| collection | DOAJ |
| description | Geometric effects in curvilinear nanomagnets can enable chiral, anisotropic, and even magnetoelectric responses. Here, we study the effects of magnetic frustration in curvilinear (quasi-)one-dimensional magnets represented by spin chains arranged along closed space curves of constant torsion. Considering the cases of easy- and hard-axis anisotropy in ferro- and antiferromagnetic samples, we determine their ground states and analyze the related magnetoelectric multipoles. A constant torsion along the chain results in alternating regions of high and low curvature, facilitating the spin spiral state perturbed by the (anti)periodic boundary conditions on the magnetic order parameter. While easy-axis ferromagnetic chains develop a purely toroidal configuration with the magnetic toroidal moment oriented along the geometry symmetry axis, hard-axis antiferromagnetic chains support multiple magnetic toroidal domains. Our findings suggest that tailoring curvature and torsion of a spin chain enables a different physical mechanism for magnetic frustration, which can be observed in the inhomogeneity of the magnetic order parameter and in the local ferrotoroidal responses. |
| format | Article |
| id | doaj-art-69007c3d58604bca8608202692cc36de |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-69007c3d58604bca8608202692cc36de2025-01-23T15:03:15ZengAmerican Physical SocietyPhysical Review Research2643-15642025-01-017101308810.1103/PhysRevResearch.7.013088Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsionOleksandr V. PylypovskyiEnrico Di BenedettoCarmine OrtixDenys MakarovGeometric effects in curvilinear nanomagnets can enable chiral, anisotropic, and even magnetoelectric responses. Here, we study the effects of magnetic frustration in curvilinear (quasi-)one-dimensional magnets represented by spin chains arranged along closed space curves of constant torsion. Considering the cases of easy- and hard-axis anisotropy in ferro- and antiferromagnetic samples, we determine their ground states and analyze the related magnetoelectric multipoles. A constant torsion along the chain results in alternating regions of high and low curvature, facilitating the spin spiral state perturbed by the (anti)periodic boundary conditions on the magnetic order parameter. While easy-axis ferromagnetic chains develop a purely toroidal configuration with the magnetic toroidal moment oriented along the geometry symmetry axis, hard-axis antiferromagnetic chains support multiple magnetic toroidal domains. Our findings suggest that tailoring curvature and torsion of a spin chain enables a different physical mechanism for magnetic frustration, which can be observed in the inhomogeneity of the magnetic order parameter and in the local ferrotoroidal responses.http://doi.org/10.1103/PhysRevResearch.7.013088 |
| spellingShingle | Oleksandr V. Pylypovskyi Enrico Di Benedetto Carmine Ortix Denys Makarov Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion Physical Review Research |
| title | Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion |
| title_full | Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion |
| title_fullStr | Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion |
| title_full_unstemmed | Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion |
| title_short | Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion |
| title_sort | manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion |
| url | http://doi.org/10.1103/PhysRevResearch.7.013088 |
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