Spin Configurations in the Rectangular Lattice

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DOI: 10.4236/wjcmp.2013.34030    2,878 Downloads   4,963 Views  Citations

ABSTRACT

Using matrix method, the possible spin configurations have been determined for four sublattices in rectangular lattice taking into account only nearest-neighbor exchange interactions. We obtain collinear and non-collinear spin configurations in the ground and the first excited states for the three different propagation vectors. When k = 0, depending on the sign of exchange parameters, we find a ferromagnetic mode and three antiferromagnetic modes. When k = [1, 1] and [1.5, 1.5], we find non-collinear (canted) spin configurations. Moreover, we observe that spins of some sublattices in the excited state change their orientations.

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Mert, G. and Mert, H. (2013) Spin Configurations in the Rectangular Lattice. World Journal of Condensed Matter Physics, 3, 184-188. doi: 10.4236/wjcmp.2013.34030.
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