The spatially anisotropic frustrated Heisenberg ferrimagnet on a square lattice

We study the zero temperature properties of the two-dimensional spatially anisotropic ferrimagnet with competing interactions, using the linear spin-wave theory, and consider pairs of mixed-spins in the set (1/2,1,3/2). We find a small region magnetically disordered in the phase diagram for some val...

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Bibliographic Details
Published in:Solid state communications 2012-10, Vol.152 (19), p.1850-1854
Main Authors: Griffith, M.A., Pires, A.S.T., Sousa, J.R.
Format: Article
Language:English
Subjects:
Anisotropy
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Ferrimagnetic
Frustration
General theory and models of magnetic ordering
Magnetic properties and materials
Physics
Quantum phase transitions
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Summary:We study the zero temperature properties of the two-dimensional spatially anisotropic ferrimagnet with competing interactions, using the linear spin-wave theory, and consider pairs of mixed-spins in the set (1/2,1,3/2). We find a small region magnetically disordered in the phase diagram for some values of the anisotropy parameter. ► The ferrimagnetic model with anisotropy of second neighbors was studied. ► The phase diagram was studied as a function of parameter of the anisotropy Δ. ► The cases (1,1/2), (1,3/2), (3/2,1/2) and (1,3/2) were studied. ► The magnetically disordered phase was studied as a function of Δ.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2012.06.019