Giant magnetocaloric effect, magnetization plateaux and jumps of the regular Ising polyhedra
arXiv:1502.04449 · doi:10.1016/j.physb.2015.03.031
Abstract
Magnetization process and adiabatic demagnetization of the antiferromagnetic Ising spin clusters with the shape of regular polyhedra (Platonic solids) are exactly examined within the framework of a simple graph-theoretical approach. While the Ising cube as the only unfrustrated (bipartite) spin cluster shows just one trivial plateau at zero magnetization, the other regular Ising polyhedra (tetrahedron, octahedron, icosahedron and dodecahedron) additionally display either one or two intermediate plateaux at fractional values of the saturation magnetization. The nature of highly degenerate ground states emergent at intermediate plateaux owing to a geometric frustration is clarified. It is evidenced that the regular Ising polyhedra exhibit a giant magnetocaloric effect in a vicinity of magnetization jumps, whereas the Ising octahedron and dodecahedron belong to the most prominent geometrically frustrated spin clusters that enable an efficient low-temperature refrigeration by the process of adiabatic demagnetization.
14 pages, 7 figures
References in corpus (7)
- Highly Frustrated Magnetic Clusters: The kagome on a sphere
- Metamagnetic phase transition of the antiferromagnetic Heisenberg icosahedron
- Single-ion and exchange anisotropy effects and multiferroic behavior in high-symmetry tetramer single molecule magnets
- Thermodynamic and magnetocaloric properties of geometrically frustrated Ising nanoclusters
- Large-scale numerical investigations of the antiferromagnetic Heisenberg icosidodecahedron
- Frustration effects in antiferromagnetic molecules: the cuboctahedron
- Spin anisotropy effects in dimer single molecule magnets
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