Ferrimagnetism in diluted mixed Ising spin systems
Ферримагнетизм в разбавленных смешанных изинговских спиновых системах
1995-05-01
SCID: 54.1/73z58tnb
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compensation pointsdiluted mixed Ising systemseffective-field theoryferrimagnetismhoneycomb lattice
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Abstract (AI)
The magnetic properties of diluted mixed Ising ferrimagnetic systems consisting of spin-1/2 and spin-1 are investigated within the framework of an effective-field theory with correlations. Particular emphasis is given to the honeycomb lattice with coordination number z=3 for which the phase diagram (transition temperature and compensation temperature) and magnetizations (total and sublattice) are obtained. We find a number of interesting phenomena in these quantities, such as the possibility of two compensation points in the total magnetization curve and magnetization curves not predicted in the N\'eel theory.
Key Findings
1
An effective-field theory with correlations is used to investigate diluted mixed Ising ferrimagnetic systems containing spin-1/2 and spin-1 components.
2
For the honeycomb lattice with coordination number z=3, the study determines phase diagrams including transition and compensation temperatures.
3
Some predicted magnetization curves are not captured by traditional Néel theory, indicating additional behavior from dilution and mixed spins.
4
The total magnetization can exhibit two compensation points, where magnetization vanishes below the transition temperature.
5
Total and sublattice magnetizations are calculated, revealing diverse magnetic behaviors in the diluted ferrimagnetic system.
Research Object
diluted mixed Ising ferrimagnetic systems consisting of spin-1/2 and spin-1 on a honeycomb lattice
Research Subject
phase behavior and magnetization properties, including transition and compensation temperatures and total and sublattice magnetization curves
Publication Details
Publication Date
1995-05-01
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