Magnetism in a graphene-like Ising (spin-1/2) nanoparticle decorated with spin-1 atom
Магнетизм графеноподобной изинговской наночастицы со спином 1/2, декорированной атомом со спином 1
2020-11-16
SCID: 54.1/2zvy5pgq
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effective-field theoryferrimagnetic phase diagramgraphene-like Ising nanoparticlesingle-ion anisotropyspin-1 atom decoration
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Abstract (AI)
The phase diagram and the thermal variations of magnetizations in a graphene-like Ising nanoparticle decorated with spin-1 atom are examined by the effective-field theory with correlations. The effects of single-ion anisotropy of spin-1 atom to the magnetic properties are discussed. The following facts are clarified, when the appropriate conditions are satisfied: The transition temperature of the nanoparticle may become larger than that of bulk honeycomb lattice. The decorated nanoparticle exhibits many characteristic phenomena observed in bulk ferrimagnetic materials.
Key Findings
1
Single-ion anisotropy of the decorating spin-1 atom significantly influences the nanoparticle’s magnetic properties and phase behavior.
2
The decorated nanoparticle displays characteristic magnetic phenomena commonly observed in bulk ferrimagnetic materials.
3
The phase diagram and temperature-dependent magnetizations of a graphene-like Ising nanoparticle with spin-1 decoration are analyzed using effective-field theory with correlations.
4
Under suitable conditions, the nanoparticle’s transition temperature can exceed that of the corresponding bulk honeycomb lattice.
Research Object
a graphene-like Ising nanoparticle decorated with a spin-1 atom
Research Subject
the phase diagram, thermal magnetization variations, and effects of the spin-1 atom’s single-ion anisotropy on the magnetic properties
Publication Details
Publication Date
2020-11-16
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