Small Antiferromagnetic Spin Systems: Just beyond the Rotational Band Model

• Authors: W. Florek , L. Kaliszan
• Languages of publication: EN

Abstracts

EN

Two systems of spins s=1/2 with the Heisenberg interactions are investigated: (i) an equilateral trapezoid and (ii) a regular hexagon. Both cases are compared with the corresponding sublattice Hamiltonians to determine splitting and mixing of energy levels with a given total spin of sublattices. It is shown that small modifications of the Hamiltonian parameters may significantly change (magnetic) properties of the eigenstates, especially probability of finding system in a state with determined value of the sublattice total spin.

Keywords

EN

75.10.Jm; 75.50.Ee; 75.50.Xx

Discipline

• 75.50.Ee: Antiferromagnetics
• 75.50.Xx: Molecular magnets
• 75.10.Jm: Quantized spin models, including quantum spin frustration

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 330-332

Dates

published

2015-02

Contributors

author

W. Florek

• Adam Mickiewicz University, Faculty of Physics, Umultowska 85, 61-614 Poznań, Poland

author

L. Kaliszan

• Poznań School of Logistics, Estkowskiego 6, 61-755 Poznań, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.127.330